157970330 has 32 divisors (see below), whose sum is σ = 326180736. Its totient is φ = 53959104.

The previous prime is 157970299. The next prime is 157970333. The reversal of 157970330 is 33079751.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (157970333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15317 + ... + 23463.

It is an arithmetic number, because the mean of its divisors is an integer number (10193148).

Almost surely, 2^157970330 is an apocalyptic number.

157970330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157970330 is an abundant number, since it is smaller than the sum of its proper divisors (168210406).

157970330 is a wasteful number, since it uses less digits than its factorization.

157970330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 157970330 is about 12568.6248253339. The cubic root of 157970330 is about 540.5781758816.

The spelling of 157970330 in words is "one hundred fifty-seven million, nine hundred seventy thousand, three hundred thirty".