278960072 has 64 divisors (see below), whose sum is σ = 577290240. Its totient is φ = 125798400.

The previous prime is 278960063. The next prime is 278960107. The reversal of 278960072 is 270069872.

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 15 ways as a sum of consecutive naturals, for example, 535172 + ... + 535692.

It is an arithmetic number, because the mean of its divisors is an integer number (9020160).

Almost surely, 2^278960072 is an apocalyptic number.

It is an amenable number.

278960072 is an abundant number, since it is smaller than the sum of its proper divisors (298330168).

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

278960072 is a wasteful number, since it uses less digits than its factorization.

278960072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 278960072 is about 16702.0978323084. The cubic root of 278960072 is about 653.4023350232.

The spelling of 278960072 in words is "two hundred seventy-eight million, nine hundred sixty thousand, seventy-two".