13157420 has 24 divisors (see below), whose sum is σ = 27751248. Its totient is φ = 5240000.

The previous prime is 13157399. The next prime is 13157437. The reversal of 13157420 is 2475131.

It is a super-3 number, since 3×13157420³ (a number of 22 digits) contains 333 as substring.

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, 3710 + ... + 6330.

It is an arithmetic number, because the mean of its divisors is an integer number (1156302).

Almost surely, 2^13157420 is an apocalyptic number.

13157420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13157420 is an abundant number, since it is smaller than the sum of its proper divisors (14593828).

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

13157420 is a wasteful number, since it uses less digits than its factorization.

13157420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2879 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 13157420 is about 3627.3158120020. The cubic root of 13157420 is about 236.0787585455.

The spelling of 13157420 in words is "thirteen million, one hundred fifty-seven thousand, four hundred twenty".