1157380730 has 24 divisors (see below), whose sum is σ = 2289894516. Its totient is φ = 420865280.

The previous prime is 1157380703. The next prime is 1157380799. The reversal of 1157380730 is 370837511.

It can be written as a sum of positive squares in 2 ways, for example, as 1142642809 + 14737921 = 33803^2 + 3839^2 .

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 11 ways as a sum of consecutive naturals, for example, 477047 + ... + 479466.

Almost surely, 2^1157380730 is an apocalyptic number.

1157380730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157380730 is a deficient number, since it is larger than the sum of its proper divisors (1132513786).

1157380730 is a wasteful number, since it uses less digits than its factorization.

1157380730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956542 (or 956531 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 1157380730 is about 34020.2987935144. The cubic root of 1157380730 is about 1049.9261414412.

The spelling of 1157380730 in words is "one billion, one hundred fifty-seven million, three hundred eighty thousand, seven hundred thirty".