43725240 has 96 divisors (see below), whose sum is σ = 153054720. Its totient is φ = 10761984.

The previous prime is 43725233. The next prime is 43725247. The reversal of 43725240 is 4252734.

43725240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43725233) and next prime (43725247).

It is a super-2 number, since 2×43725240² = 3823793226115200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43725247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9 + ... + 9351.

It is an arithmetic number, because the mean of its divisors is an integer number (1594320).

Almost surely, 2^43725240 is an apocalyptic number.

43725240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43725240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76527360).

43725240 is an abundant number, since it is smaller than the sum of its proper divisors (109329480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43725240 is a wasteful number, since it uses less digits than its factorization.

43725240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9366 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 43725240 is about 6612.5063327002. The cubic root of 43725240 is about 352.2984512530.

Adding to 43725240 its reverse (4252734), we get a palindrome (47977974).

The spelling of 43725240 in words is "forty-three million, seven hundred twenty-five thousand, two hundred forty".