157255340 has 24 divisors (see below), whose sum is σ = 360258192. Its totient is φ = 57183680.

The previous prime is 157255339. The next prime is 157255361. The reversal of 157255340 is 43552751.

It is a junction number, because it is equal to n+sod(n) for n = 157255297 and 157255306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357179 + ... + 357618.

It is an arithmetic number, because the mean of its divisors is an integer number (15010758).

Almost surely, 2^157255340 is an apocalyptic number.

157255340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157255340 is an abundant number, since it is smaller than the sum of its proper divisors (203002852).

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

157255340 is a wasteful number, since it uses less digits than its factorization.

157255340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714817 (or 714815 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 157255340 is about 12540.1491219204. The cubic root of 157255340 is about 539.7613714735.

The spelling of 157255340 in words is "one hundred fifty-seven million, two hundred fifty-five thousand, three hundred forty".