42220136 has 16 divisors (see below), whose sum is σ = 90471840. Its totient is φ = 18094320.

The previous prime is 42220127. The next prime is 42220151. The reversal of 42220136 is 63102224.

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, 376910 + ... + 377021.

It is an arithmetic number, because the mean of its divisors is an integer number (5654490).

Almost surely, 2^42220136 is an apocalyptic number.

It is an amenable number.

42220136 is an abundant number, since it is smaller than the sum of its proper divisors (48251704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42220136 is a wasteful number, since it uses less digits than its factorization.

42220136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753944 (or 753940 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 42220136 is about 6497.7023631435. The cubic root of 42220136 is about 348.2089070234.

The spelling of 42220136 in words is "forty-two million, two hundred twenty thousand, one hundred thirty-six".