222042750 has 64 divisors (see below), whose sum is σ = 558522432. Its totient is φ = 58752000.

The previous prime is 222042749. The next prime is 222042761. The reversal of 222042750 is 57240222.

It is a self number, because there is not a number n which added to its sum of digits gives 222042750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101670 + ... + 103830.

It is an arithmetic number, because the mean of its divisors is an integer number (8726913).

Almost surely, 2^222042750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222042750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279261216).

222042750 is an abundant number, since it is smaller than the sum of its proper divisors (336479682).

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

222042750 is a wasteful number, since it uses less digits than its factorization.

222042750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 222042750 is about 14901.0989527618. The cubic root of 222042750 is about 605.5437590248.

Adding to 222042750 its reverse (57240222), we get a palindrome (279282972).

The spelling of 222042750 in words is "two hundred twenty-two million, forty-two thousand, seven hundred fifty".