40957905 has 16 divisors (see below), whose sum is σ = 65819520. Its totient is φ = 21748608.

The previous prime is 40957897. The next prime is 40957907. The reversal of 40957905 is 50975904.

It is not a de Polignac number, because 40957905 - 2³ = 40957897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40957907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365 + ... + 9354.

It is an arithmetic number, because the mean of its divisors is an integer number (4113720).

Almost surely, 2^40957905 is an apocalyptic number.

It is an amenable number.

40957905 is a deficient number, since it is larger than the sum of its proper divisors (24861615).

40957905 is a wasteful number, since it uses less digits than its factorization.

40957905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11960.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 40957905 is about 6399.8363260321. The cubic root of 40957905 is about 344.7036732988.

The spelling of 40957905 in words is "forty million, nine hundred fifty-seven thousand, nine hundred five".