608139442 has 4 divisors (see below), whose sum is σ = 912209166. Its totient is φ = 304069720.

The previous prime is 608139409. The next prime is 608139443. The reversal of 608139442 is 244931806.

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., 557857161 + 50282281 = 23619^2 + 7091^2 .

It is not an unprimeable number, because it can be changed into a prime (608139443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152034859 + ... + 152034862.

Almost surely, 2^608139442 is an apocalyptic number.

608139442 is a deficient number, since it is larger than the sum of its proper divisors (304069724).

608139442 is a wasteful number, since it uses less digits than its factorization.

608139442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304069723.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 608139442 is about 24660.4834096982. The cubic root of 608139442 is about 847.2294763426.

The spelling of 608139442 in words is "six hundred eight million, one hundred thirty-nine thousand, four hundred forty-two".