27640046 has 32 divisors (see below), whose sum is σ = 48829440. Its totient is φ = 11490336.

The previous prime is 27640033. The next prime is 27640051. The reversal of 27640046 is 64004672.

27640046 = 609² + 610² + ... + 675².

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 73916 + ... + 74288.

It is an arithmetic number, because the mean of its divisors is an integer number (1525920).

Almost surely, 2^27640046 is an apocalyptic number.

27640046 is a deficient number, since it is larger than the sum of its proper divisors (21189394).

27640046 is a wasteful number, since it uses less digits than its factorization.

27640046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 27640046 is about 5257.3801460423. The cubic root of 27640046 is about 302.3520520523.

The spelling of 27640046 in words is "twenty-seven million, six hundred forty thousand, forty-six".