42598658 has 4 divisors (see below), whose sum is σ = 63897990. Its totient is φ = 21299328.

The previous prime is 42598657. The next prime is 42598687. The reversal of 42598658 is 85689524.

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., 38031889 + 4566769 = 6167^2 + 2137^2 .

It is not an unprimeable number, because it can be changed into a prime (42598657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10649663 + ... + 10649666.

Almost surely, 2^42598658 is an apocalyptic number.

42598658 is a deficient number, since it is larger than the sum of its proper divisors (21299332).

42598658 is a wasteful number, since it uses less digits than its factorization.

42598658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21299331.

The product of its digits is 691200, while the sum is 47.

The square root of 42598658 is about 6526.7647421981. The cubic root of 42598658 is about 349.2464276547.

The spelling of 42598658 in words is "forty-two million, five hundred ninety-eight thousand, six hundred fifty-eight".