276978490 has 16 divisors (see below), whose sum is σ = 514644480. Its totient is φ = 107217360.

The previous prime is 276978487. The next prime is 276978511. The reversal of 276978490 is 94879672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446430 + ... + 447049.

It is an arithmetic number, because the mean of its divisors is an integer number (32165280).

Almost surely, 2^276978490 is an apocalyptic number.

276978490 is a deficient number, since it is larger than the sum of its proper divisors (237665990).

276978490 is a wasteful number, since it uses less digits than its factorization.

276978490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893517.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 276978490 is about 16642.6707592261. The cubic root of 276978490 is about 651.8515178085.

The spelling of 276978490 in words is "two hundred seventy-six million, nine hundred seventy-eight thousand, four hundred ninety".