27042664 has 64 divisors (see below), whose sum is σ = 59719680. Its totient is φ = 11352000.

The previous prime is 27042647. The next prime is 27042677. The reversal of 27042664 is 46624072.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62529 + ... + 62959.

It is an arithmetic number, because the mean of its divisors is an integer number (933120).

Almost surely, 2^27042664 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 27042664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29859840).

27042664 is an abundant number, since it is smaller than the sum of its proper divisors (32677016).

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

27042664 is a wasteful number, since it uses less digits than its factorization.

27042664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 27042664 is about 5200.2561475373. The cubic root of 27042664 is about 300.1579316589.

The spelling of 27042664 in words is "twenty-seven million, forty-two thousand, six hundred sixty-four".