42397598 has 4 divisors (see below), whose sum is σ = 63596400. Its totient is φ = 21198798.

The previous prime is 42397591. The next prime is 42397601. The reversal of 42397598 is 89579324.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42397591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10599398 + ... + 10599401.

It is an arithmetic number, because the mean of its divisors is an integer number (15899100).

Almost surely, 2^42397598 is an apocalyptic number.

42397598 is a deficient number, since it is larger than the sum of its proper divisors (21198802).

42397598 is a wasteful number, since it uses less digits than its factorization.

42397598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21198801.

The product of its digits is 544320, while the sum is 47.

The square root of 42397598 is about 6511.3437937188. The cubic root of 42397598 is about 348.6960953501.

The spelling of 42397598 in words is "forty-two million, three hundred ninety-seven thousand, five hundred ninety-eight".