42422636 has 12 divisors (see below), whose sum is σ = 75257112. Its totient is φ = 20920608.

The previous prime is 42422587. The next prime is 42422641. The reversal of 42422636 is 63622424.

It is a junction number, because it is equal to n+sod(n) for n = 42422599 and 42422608.

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, 72350 + ... + 72933.

It is an arithmetic number, because the mean of its divisors is an integer number (6271426).

Almost surely, 2^42422636 is an apocalyptic number.

It is an amenable number.

42422636 is a deficient number, since it is larger than the sum of its proper divisors (32834476).

42422636 is a wasteful number, since it uses less digits than its factorization.

42422636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145360 (or 145358 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 42422636 is about 6513.2661545495. The cubic root of 42422636 is about 348.7647229389.

The spelling of 42422636 in words is "forty-two million, four hundred twenty-two thousand, six hundred thirty-six".