40650631 has 4 divisors (see below), whose sum is σ = 46457872. Its totient is φ = 34843392.

The previous prime is 40650619. The next prime is 40650653. The reversal of 40650631 is 13605604.

40650631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40650631 - 2¹¹ = 40648583 is a prime.

It is a super-2 number, since 2×40650631² = 3304947601396322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40650596 and 40650605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40650601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2903610 + ... + 2903623.

It is an arithmetic number, because the mean of its divisors is an integer number (11614468).

Almost surely, 2^40650631 is an apocalyptic number.

40650631 is a deficient number, since it is larger than the sum of its proper divisors (5807241).

40650631 is an equidigital number, since it uses as much as digits as its factorization.

40650631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807240.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40650631 is about 6375.7847360149. The cubic root of 40650631 is about 343.8394977545.

The spelling of 40650631 in words is "forty million, six hundred fifty thousand, six hundred thirty-one".