276338664 has 48 divisors (see below), whose sum is σ = 855335520. Its totient is φ = 78953760.

The previous prime is 276338659. The next prime is 276338687. The reversal of 276338664 is 466833672.

276338664 is a `hidden beast` number, since 2 + 7 + 633 + 8 + 6 + 6 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

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, 273642 + ... + 274649.

It is an arithmetic number, because the mean of its divisors is an integer number (17819490).

Almost surely, 2^276338664 is an apocalyptic number.

276338664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

276338664 is an abundant number, since it is smaller than the sum of its proper divisors (578996856).

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

276338664 is a wasteful number, since it uses less digits than its factorization.

276338664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548310 (or 548303 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 276338664 is about 16623.4371897030. The cubic root of 276338664 is about 651.3492006912.

The spelling of 276338664 in words is "two hundred seventy-six million, three hundred thirty-eight thousand, six hundred sixty-four".