27924138 has 36 divisors (see below), whose sum is σ = 66507714. Its totient is φ = 8461200.

The previous prime is 27924133. The next prime is 27924151. The reversal of 27924138 is 83142972.

It can be written as a sum of positive squares in only one way, i.e., 27531009 + 393129 = 5247^2 + 627^2 .

It is not an unprimeable number, because it can be changed into a prime (27924133) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4233 + ... + 8588.

Almost surely, 2^27924138 is an apocalyptic number.

27924138 is an abundant number, since it is smaller than the sum of its proper divisors (38583576).

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

27924138 is a wasteful number, since it uses less digits than its factorization.

27924138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12851 (or 12837 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 27924138 is about 5284.3294749665. The cubic root of 27924138 is about 303.3844090086.

The spelling of 27924138 in words is "twenty-seven million, nine hundred twenty-four thousand, one hundred thirty-eight".