240461631 has 24 divisors (see below), whose sum is σ = 357920784. Its totient is φ = 155450880.

The previous prime is 240461629. The next prime is 240461647. The reversal of 240461631 is 136164042.

240461631 is a `hidden beast` number, since 2 + 40 + 4 + 616 + 3 + 1 = 666.

It is not a de Polignac number, because 240461631 - 2¹ = 240461629 is a prime.

It is a super-2 number, since 2×240461631² = 115643591966360322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240461595 and 240461604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240461621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114511 + ... + 116591.

It is an arithmetic number, because the mean of its divisors is an integer number (14913366).

Almost surely, 2^240461631 is an apocalyptic number.

240461631 is a deficient number, since it is larger than the sum of its proper divisors (117459153).

240461631 is a wasteful number, since it uses less digits than its factorization.

240461631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 240461631 is about 15506.8253037171. The cubic root of 240461631 is about 621.8446890136.

The spelling of 240461631 in words is "two hundred forty million, four hundred sixty-one thousand, six hundred thirty-one".