279242992 has 30 divisors (see below), whose sum is σ = 618715608. Its totient is φ = 119599776.

The previous prime is 279242963. The next prime is 279243011. The reversal of 279242992 is 299242972.

It is a super-2 number, since 2×279242992² = 155953297162224128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176059 + ... + 177637.

Almost surely, 2^279242992 is an apocalyptic number.

It is an amenable number.

279242992 is an abundant number, since it is smaller than the sum of its proper divisors (339472616).

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

279242992 is an frugal number, since it uses more digits than its factorization.

279242992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173 (or 1588 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 279242992 is about 16710.5652806840. The cubic root of 279242992 is about 653.6231529197.

Multiplying 279242992 by its product of digits (326592), we get a square (91198527243264 = 9549792²).

The spelling of 279242992 in words is "two hundred seventy-nine million, two hundred forty-two thousand, nine hundred ninety-two".