13904490 has 16 divisors (see below), whose sum is σ = 33370848. Its totient is φ = 3707856.

The previous prime is 13904479. The next prime is 13904503. The reversal of 13904490 is 9440931.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 463483 = 13904490 / (1 + 3 + 9 + 0 + 4 + 4 + 9 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231712 + ... + 231771.

It is an arithmetic number, because the mean of its divisors is an integer number (2085678).

Almost surely, 2^13904490 is an apocalyptic number.

13904490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13904490 is an abundant number, since it is smaller than the sum of its proper divisors (19466358).

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

13904490 is a wasteful number, since it uses less digits than its factorization.

13904490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463493.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 13904490 is about 3728.8724837409. The cubic root of 13904490 is about 240.4648974893.

The spelling of 13904490 in words is "thirteen million, nine hundred four thousand, four hundred ninety".