42222924 has 24 divisors (see below), whose sum is σ = 109467120. Its totient is φ = 14074272.

The previous prime is 42222923. The next prime is 42222941. The reversal of 42222924 is 42922224.

It is a happy number.

It is a super-2 number, since 2×42222924² = 3565550622219552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (42222923) 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, 195369 + ... + 195584.

It is an arithmetic number, because the mean of its divisors is an integer number (4561130).

Almost surely, 2^42222924 is an apocalyptic number.

It is an amenable number.

42222924 is an abundant number, since it is smaller than the sum of its proper divisors (67244196).

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

42222924 is a wasteful number, since it uses less digits than its factorization.

42222924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390966 (or 390958 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 42222924 is about 6497.9168969755. The cubic root of 42222924 is about 348.2165714947.

The spelling of 42222924 in words is "forty-two million, two hundred twenty-two thousand, nine hundred twenty-four".