40662631 has 2 divisors, whose sum is σ = 40662632. Its totient is φ = 40662630.

The previous prime is 40662619. The next prime is 40662637. The reversal of 40662631 is 13626604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40662631 - 2⁵ = 40662599 is a prime.

It is a super-2 number, since 2×40662631² = 3306899119684322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40662631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40662637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20331315 + 20331316.

It is an arithmetic number, because the mean of its divisors is an integer number (20331316).

Almost surely, 2^40662631 is an apocalyptic number.

40662631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40662631 is an equidigital number, since it uses as much as digits as its factorization.

40662631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 40662631 is about 6376.7257272051. The cubic root of 40662631 is about 343.8733280455.

The spelling of 40662631 in words is "forty million, six hundred sixty-two thousand, six hundred thirty-one".