42157635 has 32 divisors (see below), whose sum is σ = 74426688. Its totient is φ = 20244480.

The previous prime is 42157607. The next prime is 42157651. The reversal of 42157635 is 53675124.

It is not a de Polignac number, because 42157635 - 2⁶ = 42157571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42157596 and 42157605.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5359 + ... + 10631.

It is an arithmetic number, because the mean of its divisors is an integer number (2325834).

Almost surely, 2^42157635 is an apocalyptic number.

42157635 is a deficient number, since it is larger than the sum of its proper divisors (32269053).

42157635 is a wasteful number, since it uses less digits than its factorization.

42157635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335.

The product of its digits is 25200, while the sum is 33.

The square root of 42157635 is about 6492.8911125938. The cubic root of 42157635 is about 348.0369973216.

The spelling of 42157635 in words is "forty-two million, one hundred fifty-seven thousand, six hundred thirty-five".