276642434 has 8 divisors (see below), whose sum is σ = 419072508. Its totient is φ = 136951600.

The previous prime is 276642409. The next prime is 276642461. The reversal of 276642434 is 434246672.

It can be written as a sum of positive squares in 2 ways, for example, as 274001809 + 2640625 = 16553^2 + 1625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684557 + ... + 684960.

Almost surely, 2^276642434 is an apocalyptic number.

276642434 is a deficient number, since it is larger than the sum of its proper divisors (142430074).

276642434 is a wasteful number, since it uses less digits than its factorization.

276642434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369620.

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

The square root of 276642434 is about 16632.5714788784. The cubic root of 276642434 is about 651.5877822052.

The spelling of 276642434 in words is "two hundred seventy-six million, six hundred forty-two thousand, four hundred thirty-four".