27974442 has 16 divisors (see below), whose sum is σ = 57461472. Its totient is φ = 9072720.

The previous prime is 27974399. The next prime is 27974449. The reversal of 27974442 is 24447972.

It is a super-2 number, since 2×27974442² = 1565138810422728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27974442.

It is not an unprimeable number, because it can be changed into a prime (27974449) 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, 62784 + ... + 63227.

It is an arithmetic number, because the mean of its divisors is an integer number (3591342).

Almost surely, 2^27974442 is an apocalyptic number.

27974442 is an abundant number, since it is smaller than the sum of its proper divisors (29487030).

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

27974442 is a wasteful number, since it uses less digits than its factorization.

27974442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126053.

The product of its digits is 112896, while the sum is 39.

The square root of 27974442 is about 5289.0870667819. The cubic root of 27974442 is about 303.5664772275.

The spelling of 27974442 in words is "twenty-seven million, nine hundred seventy-four thousand, four hundred forty-two".