442422442 has 64 divisors (see below), whose sum is σ = 859465728. Its totient is φ = 165816000.

The previous prime is 442422439. The next prime is 442422443. The reversal of 442422442 is 244224244.

It is a self number, because there is not a number n which added to its sum of digits gives 442422442.

It is not an unprimeable number, because it can be changed into a prime (442422443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 469692 + ... + 470632.

It is an arithmetic number, because the mean of its divisors is an integer number (13429152).

Almost surely, 2^442422442 is an apocalyptic number.

442422442 is a deficient number, since it is larger than the sum of its proper divisors (417043286).

442422442 is a wasteful number, since it uses less digits than its factorization.

442422442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075.

The product of its digits is 16384, while the sum is 28.

The square root of 442422442 is about 21033.8404006496. The cubic root of 442422442 is about 761.9837613622.

Adding to 442422442 its reverse (244224244), we get a palindrome (686646686).

The spelling of 442422442 in words is "four hundred forty-two million, four hundred twenty-two thousand, four hundred forty-two".