240676631 has 4 divisors (see below), whose sum is σ = 259190232. Its totient is φ = 222163032.

The previous prime is 240676607. The next prime is 240676643. The reversal of 240676631 is 136676042.

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

It is not a de Polignac number, because 240676631 - 2⁶ = 240676567 is a prime.

It is a super-2 number, since 2×240676631² = 115850481419020322, 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 = 240676591 and 240676600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240666631) 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, 9256781 + ... + 9256806.

It is an arithmetic number, because the mean of its divisors is an integer number (64797558).

Almost surely, 2^240676631 is an apocalyptic number.

240676631 is a deficient number, since it is larger than the sum of its proper divisors (18513601).

240676631 is a wasteful number, since it uses less digits than its factorization.

240676631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18513600.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 240676631 is about 15513.7561860434. The cubic root of 240676631 is about 622.0299670567.

The spelling of 240676631 in words is "two hundred forty million, six hundred seventy-six thousand, six hundred thirty-one".