279978054 has 32 divisors (see below), whose sum is σ = 572352000. Its totient is φ = 91282464.

The previous prime is 279978037. The next prime is 279978079. The reversal of 279978054 is 450879972.

It is a junction number, because it is equal to n+sod(n) for n = 279977988 and 279978006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48957 + ... + 54375.

It is an arithmetic number, because the mean of its divisors is an integer number (17886000).

Almost surely, 2^279978054 is an apocalyptic number.

279978054 is an abundant number, since it is smaller than the sum of its proper divisors (292373946).

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

279978054 is a wasteful number, since it uses less digits than its factorization.

279978054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5612.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 279978054 is about 16732.5447556551. The cubic root of 279978054 is about 654.1961694909.

The spelling of 279978054 in words is "two hundred seventy-nine million, nine hundred seventy-eight thousand, fifty-four".