40620631 has 8 divisors (see below), whose sum is σ = 41958000. Its totient is φ = 39304512.

The previous prime is 40620623. The next prime is 40620647. The reversal of 40620631 is 13602604.

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 40620631 - 2³ = 40620623 is a prime.

It is a super-2 number, since 2×40620631² = 3300071325676322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40620331) 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, 1381 + ... + 9118.

It is an arithmetic number, because the mean of its divisors is an integer number (5244750).

Almost surely, 2^40620631 is an apocalyptic number.

40620631 is a deficient number, since it is larger than the sum of its proper divisors (1337369).

40620631 is a wasteful number, since it uses less digits than its factorization.

40620631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40620631 is about 6373.4316502180. The cubic root of 40620631 is about 343.7548928890.

The spelling of 40620631 in words is "forty million, six hundred twenty thousand, six hundred thirty-one".