13458780 has 36 divisors (see below), whose sum is σ = 40825512. Its totient is φ = 3588960.

The previous prime is 13458761. The next prime is 13458793. The reversal of 13458780 is 8785431.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13458780² = 362277518176800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37206 + ... + 37565.

It is an arithmetic number, because the mean of its divisors is an integer number (1134042).

Almost surely, 2^13458780 is an apocalyptic number.

13458780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13458780 is an abundant number, since it is smaller than the sum of its proper divisors (27366732).

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

13458780 is a wasteful number, since it uses less digits than its factorization.

13458780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74786 (or 74781 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 13458780 is about 3668.6209943247. The cubic root of 13458780 is about 237.8675674972.

The spelling of 13458780 in words is "thirteen million, four hundred fifty-eight thousand, seven hundred eighty".