40503631 has 8 divisors (see below), whose sum is σ = 46365984. Its totient is φ = 34660320.

The previous prime is 40503601. The next prime is 40503653. The reversal of 40503631 is 13630504.

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 40503631 - 2¹³ = 40495439 is a prime.

It is a super-2 number, since 2×40503631² = 3281088248368322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40503601) 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, 141 + ... + 9001.

It is an arithmetic number, because the mean of its divisors is an integer number (5795748).

Almost surely, 2^40503631 is an apocalyptic number.

40503631 is a deficient number, since it is larger than the sum of its proper divisors (5862353).

40503631 is an equidigital number, since it uses as much as digits as its factorization.

40503631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9521.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 40503631 is about 6364.2463025876. The cubic root of 40503631 is about 343.4245353171.

The spelling of 40503631 in words is "forty million, five hundred three thousand, six hundred thirty-one".