231780468 has 24 divisors (see below), whose sum is σ = 569285920. Its totient is φ = 73193760.

The previous prime is 231780463. The next prime is 231780473. The reversal of 231780468 is 864087132.

It is an interprime number because it is at equal distance from previous prime (231780463) and next prime (231780473).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231780463) 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 7 ways as a sum of consecutive naturals, for example, 508063 + ... + 508518.

Almost surely, 2^231780468 is an apocalyptic number.

It is an amenable number.

231780468 is an abundant number, since it is smaller than the sum of its proper divisors (337505452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231780468 is a wasteful number, since it uses less digits than its factorization.

231780468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016607 (or 1016605 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 231780468 is about 15224.3380151651. The cubic root of 231780468 is about 614.2694902202.

The spelling of 231780468 in words is "two hundred thirty-one million, seven hundred eighty thousand, four hundred sixty-eight".