40965631 has 8 divisors (see below), whose sum is σ = 49572000. Its totient is φ = 33047808.

The previous prime is 40965607. The next prime is 40965637. The reversal of 40965631 is 13656904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40965631 - 2⁷ = 40965503 is a prime.

It is a super-2 number, since 2×40965631² = 3356365846456322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40965637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172006 + ... + 172243.

It is an arithmetic number, because the mean of its divisors is an integer number (6196500).

Almost surely, 2^40965631 is an apocalyptic number.

40965631 is a deficient number, since it is larger than the sum of its proper divisors (8606369).

40965631 is a wasteful number, since it uses less digits than its factorization.

40965631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344273.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 40965631 is about 6400.4399067564. The cubic root of 40965631 is about 344.7253460638.

The spelling of 40965631 in words is "forty million, nine hundred sixty-five thousand, six hundred thirty-one".