40881725 has 12 divisors (see below), whose sum is σ = 51452064. Its totient is φ = 32215920.

The previous prime is 40881721. The next prime is 40881727. The reversal of 40881725 is 52718804.

It is not a de Polignac number, because 40881725 - 2² = 40881721 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40881721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10529 + ... + 13878.

It is an arithmetic number, because the mean of its divisors is an integer number (4287672).

Almost surely, 2^40881725 is an apocalyptic number.

It is an amenable number.

40881725 is a deficient number, since it is larger than the sum of its proper divisors (10570339).

40881725 is a wasteful number, since it uses less digits than its factorization.

40881725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24484 (or 24479 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 40881725 is about 6393.8818412604. The cubic root of 40881725 is about 344.4898291645.

The spelling of 40881725 in words is "forty million, eight hundred eighty-one thousand, seven hundred twenty-five".