27630434 has 16 divisors (see below), whose sum is σ = 44965368. Its totient is φ = 12657792.

The previous prime is 27630419. The next prime is 27630479. The reversal of 27630434 is 43403672.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24039409 + 3591025 = 4903^2 + 1895^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27630397 and 27630406.

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 7 ways as a sum of consecutive naturals, for example, 317 + ... + 7440.

Almost surely, 2^27630434 is an apocalyptic number.

27630434 is a deficient number, since it is larger than the sum of its proper divisors (17334934).

27630434 is a wasteful number, since it uses less digits than its factorization.

27630434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7909.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 27630434 is about 5256.4659230323. The cubic root of 27630434 is about 302.3169997123.

The spelling of 27630434 in words is "twenty-seven million, six hundred thirty thousand, four hundred thirty-four".