27531442 has 4 divisors (see below), whose sum is σ = 41297166. Its totient is φ = 13765720.

The previous prime is 27531431. The next prime is 27531443. The reversal of 27531442 is 24413572.

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

It can be written as a sum of positive squares in only one way, i.e., 24295041 + 3236401 = 4929^2 + 1799^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27531442.

It is not an unprimeable number, because it can be changed into a prime (27531443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6882859 + ... + 6882862.

Almost surely, 2^27531442 is an apocalyptic number.

27531442 is a deficient number, since it is larger than the sum of its proper divisors (13765724).

27531442 is a wasteful number, since it uses less digits than its factorization.

27531442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765723.

The product of its digits is 6720, while the sum is 28.

The square root of 27531442 is about 5247.0412615111. The cubic root of 27531442 is about 301.9555290277.

The spelling of 27531442 in words is "twenty-seven million, five hundred thirty-one thousand, four hundred forty-two".