27949442 has 4 divisors (see below), whose sum is σ = 41924166. Its totient is φ = 13974720.

The previous prime is 27949433. The next prime is 27949451. The reversal of 27949442 is 24494972.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (27949433) and next prime (27949451).

It can be written as a sum of positive squares in only one way, i.e., 19545241 + 8404201 = 4421^2 + 2899^2 .

It is a super-2 number, since 2×27949442² = 1562342616222728, 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 27949442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6987359 + ... + 6987362.

Almost surely, 2^27949442 is an apocalyptic number.

27949442 is a deficient number, since it is larger than the sum of its proper divisors (13974724).

27949442 is a wasteful number, since it uses less digits than its factorization.

27949442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13974723.

The product of its digits is 145152, while the sum is 41.

The square root of 27949442 is about 5286.7231817072. The cubic root of 27949442 is about 303.4760205672.

The spelling of 27949442 in words is "twenty-seven million, nine hundred forty-nine thousand, four hundred forty-two".