276342644 has 12 divisors (see below), whose sum is σ = 483783300. Its totient is φ = 138118848.

The previous prime is 276342643. The next prime is 276342683. The reversal of 276342644 is 446243672.

It can be written as a sum of positive squares in 2 ways, for example, as 38812900 + 237529744 = 6230^2 + 15412^2 .

It is a junction number, because it is equal to n+sod(n) for n = 276342598 and 276342607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276342641) 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, 242 + ... + 23510.

It is an arithmetic number, because the mean of its divisors is an integer number (40315275).

Almost surely, 2^276342644 is an apocalyptic number.

It is an amenable number.

276342644 is a deficient number, since it is larger than the sum of its proper divisors (207440656).

276342644 is a wasteful number, since it uses less digits than its factorization.

276342644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26242 (or 26240 counting only the distinct ones).

The product of its digits is 193536, while the sum is 38.

The square root of 276342644 is about 16623.5568997733. The cubic root of 276342644 is about 651.3523277206.

The spelling of 276342644 in words is "two hundred seventy-six million, three hundred forty-two thousand, six hundred forty-four".