42615398 has 24 divisors (see below), whose sum is σ = 75142872. Its totient is φ = 18071424.

The previous prime is 42615383. The next prime is 42615401. The reversal of 42615398 is 89351624.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7265 + ... + 11747.

It is an arithmetic number, because the mean of its divisors is an integer number (3130953).

Almost surely, 2^42615398 is an apocalyptic number.

42615398 is a deficient number, since it is larger than the sum of its proper divisors (32527474).

42615398 is a wasteful number, since it uses less digits than its factorization.

42615398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596 (or 4589 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 42615398 is about 6528.0470280169. The cubic root of 42615398 is about 349.2921694677.

The spelling of 42615398 in words is "forty-two million, six hundred fifteen thousand, three hundred ninety-eight".