1157046320 has 20 divisors (see below), whose sum is σ = 2690132880. Its totient is φ = 462818496.

The previous prime is 1157046313. The next prime is 1157046323. The reversal of 1157046320 is 236407511.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (1157046323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7231460 + ... + 7231619.

It is an arithmetic number, because the mean of its divisors is an integer number (134506644).

Almost surely, 2^1157046320 is an apocalyptic number.

1157046320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1157046320 is an abundant number, since it is smaller than the sum of its proper divisors (1533086560).

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

1157046320 is a wasteful number, since it uses less digits than its factorization.

1157046320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14463092 (or 14463086 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1157046320 is about 34015.3835786104. The cubic root of 1157046320 is about 1049.8250108991.

The spelling of 1157046320 in words is "one billion, one hundred fifty-seven million, forty-six thousand, three hundred twenty".