42222408 has 32 divisors (see below), whose sum is σ = 111112800. Its totient is φ = 13333248.

The previous prime is 42222391. The next prime is 42222409. The reversal of 42222408 is 80422224.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (42222409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45841 + ... + 46752.

It is an arithmetic number, because the mean of its divisors is an integer number (3472275).

Almost surely, 2^42222408 is an apocalyptic number.

It is an amenable number.

42222408 is an abundant number, since it is smaller than the sum of its proper divisors (68890392).

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

42222408 is a wasteful number, since it uses less digits than its factorization.

42222408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92621 (or 92617 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 42222408 is about 6497.8771918220. The cubic root of 42222408 is about 348.2151529882.

The spelling of 42222408 in words is "forty-two million, two hundred twenty-two thousand, four hundred eight".