22320160 has 24 divisors (see below), whose sum is σ = 52731756. Its totient is φ = 8928000.

The previous prime is 22320131. The next prime is 22320187. The reversal of 22320160 is 6102322.

It can be written as a sum of positive squares in 2 ways, for example, as 21566736 + 753424 = 4644^2 + 868^2 .

It is a super-3 number, since 3×22320160³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69591 + ... + 69910.

Almost surely, 2^22320160 is an apocalyptic number.

22320160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22320160 is an abundant number, since it is smaller than the sum of its proper divisors (30411596).

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

22320160 is a wasteful number, since it uses less digits than its factorization.

22320160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139516 (or 139508 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22320160 is about 4724.4216577270. The cubic root of 22320160 is about 281.5566360999.

Adding to 22320160 its reverse (6102322), we get a palindrome (28422482).

The spelling of 22320160 in words is "twenty-two million, three hundred twenty thousand, one hundred sixty".