222649152 has 112 divisors (see below), whose sum is σ = 656612352. Its totient is φ = 66004480.

The previous prime is 222649127. The next prime is 222649157. The reversal of 222649152 is 251946222.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222649157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98143 + ... + 100385.

Almost surely, 2^222649152 is an apocalyptic number.

222649152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222649152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328306176).

222649152 is an abundant number, since it is smaller than the sum of its proper divisors (433963200).

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

222649152 is a wasteful number, since it uses less digits than its factorization.

222649152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2306 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 222649152 is about 14921.4326389928. The cubic root of 222649152 is about 606.0945075840.

The spelling of 222649152 in words is "two hundred twenty-two million, six hundred forty-nine thousand, one hundred fifty-two".