27400604 has 72 divisors (see below), whose sum is σ = 62052480. Its totient is φ = 10466400.

The previous prime is 27400553. The next prime is 27400619. The reversal of 27400604 is 40600472.

It is a self number, because there is not a number n which added to its sum of digits gives 27400604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152987 + ... + 153165.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^27400604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27400604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31026240).

27400604 is an abundant number, since it is smaller than the sum of its proper divisors (34651876).

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

27400604 is a wasteful number, since it uses less digits than its factorization.

27400604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 27400604 is about 5234.5586251374. The cubic root of 27400604 is about 301.4764403447.

The spelling of 27400604 in words is "twenty-seven million, four hundred thousand, six hundred four".