1157216430 has 32 divisors (see below), whose sum is σ = 2841911424. Its totient is φ = 301414176.

The previous prime is 1157216399. The next prime is 1157216471. The reversal of 1157216430 is 346127511.

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, 447244 + ... + 449823.

It is an arithmetic number, because the mean of its divisors is an integer number (88809732).

Almost surely, 2^1157216430 is an apocalyptic number.

1157216430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157216430 is an abundant number, since it is smaller than the sum of its proper divisors (1684694994).

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

1157216430 is a wasteful number, since it uses less digits than its factorization.

1157216430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897120.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1157216430 is about 34017.8839729928. The cubic root of 1157216430 is about 1049.8764571199.

The spelling of 1157216430 in words is "one billion, one hundred fifty-seven million, two hundred sixteen thousand, four hundred thirty".