22361152 has 56 divisors (see below), whose sum is σ = 50548032. Its totient is φ = 9715200.

The previous prime is 22361149. The next prime is 22361179. The reversal of 22361152 is 25116322.

It is a super-2 number, since 2×22361152² = 1000042237534208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15502 + ... + 16882.

Almost surely, 2^22361152 is an apocalyptic number.

22361152 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 22361152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25274016).

22361152 is an abundant number, since it is smaller than the sum of its proper divisors (28186880).

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

22361152 is a wasteful number, since it uses less digits than its factorization.

22361152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427 (or 1417 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 22361152 is about 4728.7579764670. The cubic root of 22361152 is about 281.7288945916.

Adding to 22361152 its reverse (25116322), we get a palindrome (47477474).

The spelling of 22361152 in words is "twenty-two million, three hundred sixty-one thousand, one hundred fifty-two".