240463431 has 16 divisors (see below), whose sum is σ = 383645920. Its totient is φ = 147977280.

The previous prime is 240463429. The next prime is 240463463. The reversal of 240463431 is 134364042.

240463431 is a `hidden beast` number, since 24 + 0 + 4 + 634 + 3 + 1 = 666.

It is not a de Polignac number, because 240463431 - 2¹ = 240463429 is a prime.

It is a super-2 number, since 2×240463431² = 115645323296583522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240463395 and 240463404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240463471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342190 + ... + 342891.

It is an arithmetic number, because the mean of its divisors is an integer number (23977870).

Almost surely, 2^240463431 is an apocalyptic number.

240463431 is a deficient number, since it is larger than the sum of its proper divisors (143182489).

240463431 is a wasteful number, since it uses less digits than its factorization.

240463431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685103 (or 685097 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 240463431 is about 15506.8833425676. The cubic root of 240463431 is about 621.8462406370.

The spelling of 240463431 in words is "two hundred forty million, four hundred sixty-three thousand, four hundred thirty-one".