232276640 has 24 divisors (see below), whose sum is σ = 548753940. Its totient is φ = 92910592.

The previous prime is 232276621. The next prime is 232276643. The reversal of 232276640 is 46672232.

It can be written as a sum of positive squares in 2 ways, for example, as 191877904 + 40398736 = 13852^2 + 6356^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 232276597 and 232276606.

It is not an unprimeable number, because it can be changed into a prime (232276643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725705 + ... + 726024.

Almost surely, 2^232276640 is an apocalyptic number.

232276640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232276640 is an abundant number, since it is smaller than the sum of its proper divisors (316477300).

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

232276640 is a wasteful number, since it uses less digits than its factorization.

232276640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451744 (or 1451736 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 232276640 is about 15240.6246591142. The cubic root of 232276640 is about 614.7074996571.

The spelling of 232276640 in words is "two hundred thirty-two million, two hundred seventy-six thousand, six hundred forty".