27957242 has 4 divisors (see below), whose sum is σ = 41935866. Its totient is φ = 13978620.

The previous prime is 27957233. The next prime is 27957263. The reversal of 27957242 is 24275972.

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., 27867841 + 89401 = 5279^2 + 299^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27957196 and 27957205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6989309 + ... + 6989312.

Almost surely, 2^27957242 is an apocalyptic number.

27957242 is a deficient number, since it is larger than the sum of its proper divisors (13978624).

27957242 is a wasteful number, since it uses less digits than its factorization.

27957242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13978623.

The product of its digits is 70560, while the sum is 38.

The square root of 27957242 is about 5287.4608272781. The cubic root of 27957242 is about 303.5042488325.

The spelling of 27957242 in words is "twenty-seven million, nine hundred fifty-seven thousand, two hundred forty-two".