279490054 has 4 divisors (see below), whose sum is σ = 419235084. Its totient is φ = 139745026.

The previous prime is 279490039. The next prime is 279490087. The reversal of 279490054 is 450094972.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×279490054² = 156229380569845832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 279489989 and 279490016.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 69872512 + ... + 69872515.

It is an arithmetic number, because the mean of its divisors is an integer number (104808771).

Almost surely, 2^279490054 is an apocalyptic number.

279490054 is a deficient number, since it is larger than the sum of its proper divisors (139745030).

279490054 is a wasteful number, since it uses less digits than its factorization.

279490054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139745029.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 279490054 is about 16717.9560353531. The cubic root of 279490054 is about 653.8158618343.

The spelling of 279490054 in words is "two hundred seventy-nine million, four hundred ninety thousand, fifty-four".