27757242 has 20 divisors (see below), whose sum is σ = 62197146. Its totient is φ = 9252360.

The previous prime is 27757211. The next prime is 27757267. The reversal of 27757242 is 24275772.

It can be written as a sum of positive squares in only one way, i.e., 26409321 + 1347921 = 5139^2 + 1161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27757197 and 27757206.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 85509 + ... + 85832.

Almost surely, 2^27757242 is an apocalyptic number.

27757242 is an abundant number, since it is smaller than the sum of its proper divisors (34439904).

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

27757242 is a wasteful number, since it uses less digits than its factorization.

27757242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171355 (or 171346 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 27757242 is about 5268.5142118058. The cubic root of 27757242 is about 302.7787817702.

The spelling of 27757242 in words is "twenty-seven million, seven hundred fifty-seven thousand, two hundred forty-two".