157240830 has 64 divisors (see below), whose sum is σ = 384703488. Its totient is φ = 41126400.

The previous prime is 157240829. The next prime is 157240847. The reversal of 157240830 is 38042751.

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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 466422 + ... + 466758.

It is an arithmetic number, because the mean of its divisors is an integer number (6010992).

Almost surely, 2^157240830 is an apocalyptic number.

157240830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157240830 is an abundant number, since it is smaller than the sum of its proper divisors (227462658).

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

157240830 is a wasteful number, since it uses less digits than its factorization.

157240830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 157240830 is about 12539.5705668097. The cubic root of 157240830 is about 539.7447696453.

The spelling of 157240830 in words is "one hundred fifty-seven million, two hundred forty thousand, eight hundred thirty".