13026690 has 32 divisors (see below), whose sum is σ = 34738560. Its totient is φ = 3473712.

The previous prime is 13026679. The next prime is 13026691. The reversal of 13026690 is 9662031.

It is a happy number.

It is a super-2 number, since 2×13026690² = 339389304712200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13026691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23854 + ... + 24393.

It is an arithmetic number, because the mean of its divisors is an integer number (1085580).

Almost surely, 2^13026690 is an apocalyptic number.

13026690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13026690 is an abundant number, since it is smaller than the sum of its proper divisors (21711870).

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

13026690 is a wasteful number, since it uses less digits than its factorization.

13026690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48263 (or 48257 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13026690 is about 3609.2506147399. The cubic root of 13026690 is about 235.2942744729.

The spelling of 13026690 in words is "thirteen million, twenty-six thousand, six hundred ninety".