13057890 has 16 divisors (see below), whose sum is σ = 31339008. Its totient is φ = 3482096.

The previous prime is 13057841. The next prime is 13057909. The reversal of 13057890 is 9875031.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 217602 + ... + 217661.

It is an arithmetic number, because the mean of its divisors is an integer number (1958688).

Almost surely, 2^13057890 is an apocalyptic number.

13057890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13057890 is an abundant number, since it is smaller than the sum of its proper divisors (18281118).

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

13057890 is a wasteful number, since it uses less digits than its factorization.

13057890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435273.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 13057890 is about 3613.5702566852. The cubic root of 13057890 is about 235.4819744499.

The spelling of 13057890 in words is "thirteen million, fifty-seven thousand, eight hundred ninety".