27402090 has 32 divisors (see below), whose sum is σ = 65909376. Its totient is φ = 7291200.

The previous prime is 27402073. The next prime is 27402097. The reversal of 27402090 is 9020472.

It is a self number, because there is not a number n which added to its sum of digits gives 27402090.

It is not an unprimeable number, because it can be changed into a prime (27402097) by changing a digit.

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, 20379 + ... + 21681.

It is an arithmetic number, because the mean of its divisors is an integer number (2059668).

Almost surely, 2^27402090 is an apocalyptic number.

27402090 is an abundant number, since it is smaller than the sum of its proper divisors (38507286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27402090 is a wasteful number, since it uses less digits than its factorization.

27402090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 27402090 is about 5234.7005645022. The cubic root of 27402090 is about 301.4818901746.

The spelling of 27402090 in words is "twenty-seven million, four hundred two thousand, ninety".