22160784 has 80 divisors (see below), whose sum is σ = 60424704. Its totient is φ = 6988800.

The previous prime is 22160777. The next prime is 22160791. The reversal of 22160784 is 48706122.

It is an interprime number because it is at equal distance from previous prime (22160777) and next prime (22160791).

It is a super-2 number, since 2×22160784² = 982200694989312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78724 + ... + 79004.

Almost surely, 2^22160784 is an apocalyptic number.

22160784 is a gapful number since it is divisible by the number (24) 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 22160784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30212352).

22160784 is an abundant number, since it is smaller than the sum of its proper divisors (38263920).

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

22160784 is a wasteful number, since it uses less digits than its factorization.

22160784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 22160784 is about 4707.5241900600. The cubic root of 22160784 is about 280.8848876072.

The spelling of 22160784 in words is "twenty-two million, one hundred sixty thousand, seven hundred eighty-four".