43725407 has 12 divisors (see below), whose sum is σ = 49616448. Its totient is φ = 38464800.

The previous prime is 43725397. The next prime is 43725419. The reversal of 43725407 is 70452734.

It is not a de Polignac number, because 43725407 - 2¹⁰ = 43724383 is a prime.

It is a super-2 number, since 2×43725407² = 3823822434631298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43725427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2078 + ... + 9579.

It is an arithmetic number, because the mean of its divisors is an integer number (4134704).

Almost surely, 2^43725407 is an apocalyptic number.

43725407 is a deficient number, since it is larger than the sum of its proper divisors (5891041).

43725407 is a wasteful number, since it uses less digits than its factorization.

43725407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11710 (or 11699 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 43725407 is about 6612.5189602753. The cubic root of 43725407 is about 352.2988997641.

It can be divided in two parts, 4372 and 5407, that added together give a palindrome (9779).

The spelling of 43725407 in words is "forty-three million, seven hundred twenty-five thousand, four hundred seven".