222604536 has 128 divisors (see below), whose sum is σ = 699033600. Its totient is φ = 57386880.

The previous prime is 222604531. The next prime is 222604537. The reversal of 222604536 is 635406222.

222604536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222604531) 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, 300855 + ... + 301593.

It is an arithmetic number, because the mean of its divisors is an integer number (5461200).

Almost surely, 2^222604536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222604536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349516800).

222604536 is an abundant number, since it is smaller than the sum of its proper divisors (476429064).

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

222604536 is a wasteful number, since it uses less digits than its factorization.

222604536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 222604536 is about 14919.9375333813. The cubic root of 222604536 is about 606.0540203888.

It can be divided in two parts, 22260 and 4536, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 222604536 in words is "two hundred twenty-two million, six hundred four thousand, five hundred thirty-six".