276139264 has 36 divisors (see below), whose sum is σ = 564665220. Its totient is φ = 134696960.

The previous prime is 276139261. The next prime is 276139267. The reversal of 276139264 is 462931672.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (276139261) and next prime (276139267).

It can be written as a sum of positive squares in 2 ways, for example, as 17572864 + 258566400 = 4192^2 + 16080^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276139261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2659 + ... + 23650.

It is an arithmetic number, because the mean of its divisors is an integer number (15685145).

Almost surely, 2^276139264 is an apocalyptic number.

It is an amenable number.

276139264 is an abundant number, since it is smaller than the sum of its proper divisors (288525956).

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

276139264 is an equidigital number, since it uses as much as digits as its factorization.

276139264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26366 (or 26352 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 276139264 is about 16617.4385511125. The cubic root of 276139264 is about 651.1924964977.

It can be divided in two parts, 2761 and 39264, that added together give a square (42025 = 205²).

The spelling of 276139264 in words is "two hundred seventy-six million, one hundred thirty-nine thousand, two hundred sixty-four".