14778490 has 16 divisors (see below), whose sum is σ = 26648352. Its totient is φ = 5900944.

The previous prime is 14778481. The next prime is 14778493. The reversal of 14778490 is 9487741.

It is not an unprimeable number, because it can be changed into a prime (14778493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7377 + ... + 9163.

It is an arithmetic number, because the mean of its divisors is an integer number (1665522).

Almost surely, 2^14778490 is an apocalyptic number.

14778490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14778490 is a deficient number, since it is larger than the sum of its proper divisors (11869862).

14778490 is a wasteful number, since it uses less digits than its factorization.

14778490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 14778490 is about 3844.2801666892. The cubic root of 14778490 is about 245.4012029821.

The spelling of 14778490 in words is "fourteen million, seven hundred seventy-eight thousand, four hundred ninety".