42122636 has 12 divisors (see below), whose sum is σ = 74097912. Its totient is φ = 20951808.

The previous prime is 42122627. The next prime is 42122681. The reversal of 42122636 is 63622124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26510 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (6174826).

Almost surely, 2^42122636 is an apocalyptic number.

It is an amenable number.

42122636 is a deficient number, since it is larger than the sum of its proper divisors (31975276).

42122636 is a wasteful number, since it uses less digits than its factorization.

42122636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54760 (or 54758 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 42122636 is about 6490.1953745631. The cubic root of 42122636 is about 347.9406579573.

The spelling of 42122636 in words is "forty-two million, one hundred twenty-two thousand, six hundred thirty-six".