27404490 has 16 divisors (see below), whose sum is σ = 65770848. Its totient is φ = 7307856.

The previous prime is 27404471. The next prime is 27404491. The reversal of 27404490 is 9440472.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 913483 = 27404490 / (2 + 7 + 4 + 0 + 4 + 4 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (27404491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456712 + ... + 456771.

It is an arithmetic number, because the mean of its divisors is an integer number (4110678).

Almost surely, 2^27404490 is an apocalyptic number.

27404490 is an abundant number, since it is smaller than the sum of its proper divisors (38366358).

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

27404490 is a wasteful number, since it uses less digits than its factorization.

27404490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913493.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 27404490 is about 5234.9297989562. The cubic root of 27404490 is about 301.4906916372.

The spelling of 27404490 in words is "twenty-seven million, four hundred four thousand, four hundred ninety".