278949048 has 32 divisors (see below), whose sum is σ = 796997760. Its totient is φ = 79699680.

The previous prime is 278949007. The next prime is 278949053. The reversal of 278949048 is 840949872.

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 in 7 ways as a sum of consecutive naturals, for example, 830038 + ... + 830373.

It is an arithmetic number, because the mean of its divisors is an integer number (24906180).

Almost surely, 2^278949048 is an apocalyptic number.

278949048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

278949048 is an abundant number, since it is smaller than the sum of its proper divisors (518048712).

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

278949048 is a wasteful number, since it uses less digits than its factorization.

278949048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660427 (or 1660423 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 278949048 is about 16701.7678106241. The cubic root of 278949048 is about 653.3937278151.

The spelling of 278949048 in words is "two hundred seventy-eight million, nine hundred forty-nine thousand, forty-eight".