157349220 has 48 divisors (see below), whose sum is σ = 503518848. Its totient is φ = 35965440.

The previous prime is 157349207. The next prime is 157349249. The reversal of 157349220 is 22943751.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186901 + ... + 187740.

It is an arithmetic number, because the mean of its divisors is an integer number (10489976).

Almost surely, 2^157349220 is an apocalyptic number.

157349220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157349220 is an abundant number, since it is smaller than the sum of its proper divisors (346169628).

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

157349220 is a wasteful number, since it uses less digits than its factorization.

157349220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374660 (or 374658 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 157349220 is about 12543.8917406043. The cubic root of 157349220 is about 539.8687609738.

The spelling of 157349220 in words is "one hundred fifty-seven million, three hundred forty-nine thousand, two hundred twenty".