222002442 has 24 divisors (see below), whose sum is σ = 494006916. Its totient is φ = 72000576.

The previous prime is 222002393. The next prime is 222002461. The reversal of 222002442 is 244200222.

222002442 is a `hidden beast` number, since 2 + 220 + 0 + 2 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 216707841 + 5294601 = 14721^2 + 2301^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

222002442 is a modest number, since divided by 2442 gives 222 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166003 + ... + 167334.

Almost surely, 2^222002442 is an apocalyptic number.

222002442 is an abundant number, since it is smaller than the sum of its proper divisors (272004474).

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

222002442 is a wasteful number, since it uses less digits than its factorization.

222002442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333382 (or 333379 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 222002442 is about 14899.7463736803. The cubic root of 222002442 is about 605.5071148276.

Adding to 222002442 its reverse (244200222), we get a palindrome (466202664).

It can be divided in two parts, 22200 and 2442, that added together give a palindrome (24642).

The spelling of 222002442 in words is "two hundred twenty-two million, two thousand, four hundred forty-two".