40725756 has 18 divisors (see below), whose sum is σ = 102945752. Its totient is φ = 13575240.

The previous prime is 40725739. The next prime is 40725767. The reversal of 40725756 is 65752704.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1131271 = 40725756 / (4 + 0 + 7 + 2 + 5 + 7 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 40725756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 565600 + ... + 565671.

Almost surely, 2^40725756 is an apocalyptic number.

It is an amenable number.

40725756 is an abundant number, since it is smaller than the sum of its proper divisors (62219996).

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

40725756 is a wasteful number, since it uses less digits than its factorization.

40725756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131281 (or 1131276 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 40725756 is about 6381.6734482422. The cubic root of 40725756 is about 344.0511799640.

The spelling of 40725756 in words is "forty million, seven hundred twenty-five thousand, seven hundred fifty-six".