27139490 has 16 divisors (see below), whose sum is σ = 55829952. Its totient is φ = 9304944.

The previous prime is 27139481. The next prime is 27139501. The reversal of 27139490 is 9493172.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 27139490.

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, 193784 + ... + 193923.

It is an arithmetic number, because the mean of its divisors is an integer number (3489372).

Almost surely, 2^27139490 is an apocalyptic number.

27139490 is an abundant number, since it is smaller than the sum of its proper divisors (28690462).

27139490 is a wasteful number, since it uses less digits than its factorization.

27139490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387721.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 27139490 is about 5209.5575627878. The cubic root of 27139490 is about 300.5157424872.

The spelling of 27139490 in words is "twenty-seven million, one hundred thirty-nine thousand, four hundred ninety".