222799542 has 64 divisors (see below), whose sum is σ = 528826368. Its totient is φ = 61236000.

The previous prime is 222799541. The next prime is 222799571. The reversal of 222799542 is 245997222.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 222799494 and 222799503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222799541) 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, 274317 + ... + 275127.

It is an arithmetic number, because the mean of its divisors is an integer number (8262912).

Almost surely, 2^222799542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222799542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264413184).

222799542 is an abundant number, since it is smaller than the sum of its proper divisors (306026826).

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

222799542 is a wasteful number, since it uses less digits than its factorization.

222799542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065.

The product of its digits is 181440, while the sum is 42.

The square root of 222799542 is about 14926.4711837728. The cubic root of 222799542 is about 606.2309405281.

The spelling of 222799542 in words is "two hundred twenty-two million, seven hundred ninety-nine thousand, five hundred forty-two".