240396631 has 4 divisors (see below), whose sum is σ = 248686200. Its totient is φ = 232107064.

The previous prime is 240396619. The next prime is 240396679. The reversal of 240396631 is 136693042.

It is a happy number.

240396631 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 240396631 - 2¹³ = 240388439 is a prime.

It is a super-2 number, since 2×240396631² = 115581080392300322, 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 (240396691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4144741 + ... + 4144798.

It is an arithmetic number, because the mean of its divisors is an integer number (62171550).

Almost surely, 2^240396631 is an apocalyptic number.

240396631 is a deficient number, since it is larger than the sum of its proper divisors (8289569).

240396631 is an equidigital number, since it uses as much as digits as its factorization.

240396631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8289568.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 240396631 is about 15504.7293107619. The cubic root of 240396631 is about 621.7886529811.

The spelling of 240396631 in words is "two hundred forty million, three hundred ninety-six thousand, six hundred thirty-one".