40897605 has 32 divisors (see below), whose sum is σ = 76320000. Its totient is φ = 18693696.

The previous prime is 40897501. The next prime is 40897607. The reversal of 40897605 is 50679804.

It is not a de Polignac number, because 40897605 - 2⁷ = 40897477 is a prime.

It is a super-2 number, since 2×40897605² = 3345228189472050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40897607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1171 + ... + 9119.

It is an arithmetic number, because the mean of its divisors is an integer number (2385000).

Almost surely, 2^40897605 is an apocalyptic number.

It is an amenable number.

40897605 is a deficient number, since it is larger than the sum of its proper divisors (35422395).

40897605 is an equidigital number, since it uses as much as digits as its factorization.

40897605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978 (or 7964 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 40897605 is about 6395.1235328178. The cubic root of 40897605 is about 344.5344276603.

The spelling of 40897605 in words is "forty million, eight hundred ninety-seven thousand, six hundred five".