231269040 has 80 divisors (see below), whose sum is σ = 796600800. Its totient is φ = 61671168.

The previous prime is 231269039. The next prime is 231269041. The reversal of 231269040 is 40962132.

It is an interprime number because it is at equal distance from previous prime (231269039) and next prime (231269041).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 231268995 and 231269013.

It is not an unprimeable number, because it can be changed into a prime (231269041) 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 15 ways as a sum of consecutive naturals, for example, 51375 + ... + 55694.

It is an arithmetic number, because the mean of its divisors is an integer number (9957510).

Almost surely, 2^231269040 is an apocalyptic number.

231269040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231269040 is an abundant number, since it is smaller than the sum of its proper divisors (565331760).

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

231269040 is a wasteful number, since it uses less digits than its factorization.

231269040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107091 (or 107079 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 231269040 is about 15207.5323442036. The cubic root of 231269040 is about 613.8173584165.

The spelling of 231269040 in words is "two hundred thirty-one million, two hundred sixty-nine thousand, forty".