276486864 has 40 divisors (see below), whose sum is σ = 745315392. Its totient is φ = 88154880.

The previous prime is 276486839. The next prime is 276486869. The reversal of 276486864 is 468684672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276486869) 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, 124117 + ... + 126324.

Almost surely, 2^276486864 is an apocalyptic number.

276486864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

276486864 is an abundant number, since it is smaller than the sum of its proper divisors (468828528).

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

276486864 is a wasteful number, since it uses less digits than its factorization.

276486864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250475 (or 250469 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The square root of 276486864 is about 16627.8941541014. The cubic root of 276486864 is about 651.4656190732.

It can be divided in two parts, 276 and 486864, that multiplied together give a square (134374464 = 11592²).

The spelling of 276486864 in words is "two hundred seventy-six million, four hundred eighty-six thousand, eight hundred sixty-four".