276428730 has 32 divisors (see below), whose sum is σ = 663868224. Its totient is φ = 73665536.

The previous prime is 276428717. The next prime is 276428771. The reversal of 276428730 is 37824672.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80917 + ... + 84263.

It is an arithmetic number, because the mean of its divisors is an integer number (20745882).

Almost surely, 2^276428730 is an apocalyptic number.

276428730 is an abundant number, since it is smaller than the sum of its proper divisors (387439494).

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

276428730 is a wasteful number, since it uses less digits than its factorization.

276428730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 276428730 is about 16626.1459755411. The cubic root of 276428730 is about 651.4199569196.

The spelling of 276428730 in words is "two hundred seventy-six million, four hundred twenty-eight thousand, seven hundred thirty".