278042598 has 16 divisors (see below), whose sum is σ = 617872560. Its totient is φ = 92680848.

The previous prime is 278042593. The next prime is 278042621. The reversal of 278042598 is 895240872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278042593) 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, 2574415 + ... + 2574522.

It is an arithmetic number, because the mean of its divisors is an integer number (38617035).

Almost surely, 2^278042598 is an apocalyptic number.

278042598 is an abundant number, since it is smaller than the sum of its proper divisors (339829962).

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

278042598 is a wasteful number, since it uses less digits than its factorization.

278042598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148948 (or 5148942 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 278042598 is about 16674.6093807321. The cubic root of 278042598 is about 652.6852215617.

The spelling of 278042598 in words is "two hundred seventy-eight million, forty-two thousand, five hundred ninety-eight".