1130172720 has 80 divisors (see below), whose sum is σ = 3506775552. Its totient is φ = 301100800.

The previous prime is 1130172707. The next prime is 1130172731. The reversal of 1130172720 is 272710311.

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 (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479545 + ... + 481895.

Almost surely, 2^1130172720 is an apocalyptic number.

1130172720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130172720 is an abundant number, since it is smaller than the sum of its proper divisors (2376602832).

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

1130172720 is a wasteful number, since it uses less digits than its factorization.

1130172720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370 (or 4364 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 1130172720 is about 33618.0415848395. The cubic root of 1130172720 is about 1041.6335029726.

The spelling of 1130172720 in words is "one billion, one hundred thirty million, one hundred seventy-two thousand, seven hundred twenty".