278560002 has 24 divisors (see below), whose sum is σ = 648079056. Its totient is φ = 79588488.

The previous prime is 278559989. The next prime is 278560019. The reversal of 278560002 is 200065872.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473448 + ... + 474035.

It is an arithmetic number, because the mean of its divisors is an integer number (27003294).

Almost surely, 2^278560002 is an apocalyptic number.

278560002 is an abundant number, since it is smaller than the sum of its proper divisors (369519054).

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

278560002 is a wasteful number, since it uses less digits than its factorization.

278560002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947502 (or 947495 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 278560002 is about 16690.1168959358. The cubic root of 278560002 is about 653.0898270536.

The spelling of 278560002 in words is "two hundred seventy-eight million, five hundred sixty thousand, two".