1172532680 has 32 divisors (see below), whose sum is σ = 2878035840. Its totient is φ = 426375360.

The previous prime is 1172532659. The next prime is 1172532689. The reversal of 1172532680 is 862352711.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172532680.

It is not an unprimeable number, because it can be changed into a prime (1172532689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331984 + ... + 1332863.

It is an arithmetic number, because the mean of its divisors is an integer number (89938620).

Almost surely, 2^1172532680 is an apocalyptic number.

1172532680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172532680 is an abundant number, since it is smaller than the sum of its proper divisors (1705503160).

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

1172532680 is a wasteful number, since it uses less digits than its factorization.

1172532680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664869 (or 2664865 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1172532680 is about 34242.2645279193. The cubic root of 1172532680 is about 1054.4880245361.

The spelling of 1172532680 in words is "one billion, one hundred seventy-two million, five hundred thirty-two thousand, six hundred eighty".