279900480 has 56 divisors (see below), whose sum is σ = 888687072. Its totient is φ = 74639872.

The previous prime is 279900479. The next prime is 279900487. The reversal of 279900480 is 84009972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279900487) 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, 144822 + ... + 146741.

It is an arithmetic number, because the mean of its divisors is an integer number (15869412).

Almost surely, 2^279900480 is an apocalyptic number.

279900480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

279900480 is an abundant number, since it is smaller than the sum of its proper divisors (608786592).

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

279900480 is a wasteful number, since it uses less digits than its factorization.

279900480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291583 (or 291573 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 279900480 is about 16730.2265376175. The cubic root of 279900480 is about 654.1357441579.

The spelling of 279900480 in words is "two hundred seventy-nine million, nine hundred thousand, four hundred eighty".