43797240 has 128 divisors (see below), whose sum is σ = 147744000. Its totient is φ = 11539584.

The previous prime is 43797227. The next prime is 43797251. The reversal of 43797240 is 4279734.

43797240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43797195 and 43797204.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 115371 + ... + 115749.

It is an arithmetic number, because the mean of its divisors is an integer number (1154250).

Almost surely, 2^43797240 is an apocalyptic number.

43797240 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 43797240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73872000).

43797240 is an abundant number, since it is smaller than the sum of its proper divisors (103946760).

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

43797240 is a wasteful number, since it uses less digits than its factorization.

43797240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 43797240 is about 6617.9483225544. The cubic root of 43797240 is about 352.4917155138.

The spelling of 43797240 in words is "forty-three million, seven hundred ninety-seven thousand, two hundred forty".