42000222 has 32 divisors (see below), whose sum is σ = 96462720. Its totient is φ = 12057120.

The previous prime is 42000199. The next prime is 42000247. The reversal of 42000222 is 22200024.

It is a happy number.

42000222 is a modest number, since divided by 222 gives 42 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 42000198 and 42000207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15493 + ... + 18000.

It is an arithmetic number, because the mean of its divisors is an integer number (3014460).

Almost surely, 2^42000222 is an apocalyptic number.

42000222 is an abundant number, since it is smaller than the sum of its proper divisors (54462498).

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

42000222 is a wasteful number, since it uses less digits than its factorization.

42000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33528.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 42000222 is about 6480.7578260571. The cubic root of 42000222 is about 347.6032769304.

Adding to 42000222 its reverse (22200024), we get a palindrome (64200246).

It can be divided in two parts, 4200022 and 2, that added together give a palindrome (4200024).

The spelling of 42000222 in words is "forty-two million, two hundred twenty-two", and thus it is an aban number.