442012222 has 32 divisors (see below), whose sum is σ = 696785760. Its totient is φ = 210107520.

The previous prime is 442012211. The next prime is 442012261. The reversal of 442012222 is 222210244.

It is a self number, because there is not a number n which added to its sum of digits gives 442012222.

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, 571428 + ... + 572200.

It is an arithmetic number, because the mean of its divisors is an integer number (21774555).

Almost surely, 2^442012222 is an apocalyptic number.

442012222 is a deficient number, since it is larger than the sum of its proper divisors (254773538).

442012222 is a wasteful number, since it uses less digits than its factorization.

442012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 442012222 is about 21024.0867102474. The cubic root of 442012222 is about 761.7481813611.

Adding to 442012222 its reverse (222210244), we get a palindrome (664222466).

The spelling of 442012222 in words is "four hundred forty-two million, twelve thousand, two hundred twenty-two".