1157430720 has 112 divisors (see below), whose sum is σ = 3891064608. Its totient is φ = 290488320.

The previous prime is 1157430709. The next prime is 1157430739. The reversal of 1157430720 is 270347511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19141 + ... + 51780.

Almost surely, 2^1157430720 is an apocalyptic number.

1157430720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1157430720 is an abundant number, since it is smaller than the sum of its proper divisors (2733633888).

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

1157430720 is a wasteful number, since it uses less digits than its factorization.

1157430720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70958 (or 70948 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1157430720 is about 34021.0334940019. The cubic root of 1157430720 is about 1049.9412574847.

The spelling of 1157430720 in words is "one billion, one hundred fifty-seven million, four hundred thirty thousand, seven hundred twenty".