22141680 has 80 divisors (see below), whose sum is σ = 74888064. Its totient is φ = 5367040.

The previous prime is 22141673. The next prime is 22141699. The reversal of 22141680 is 8614122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22141680.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554 + ... + 6833.

Almost surely, 2^22141680 is an apocalyptic number.

22141680 is a gapful number since it is divisible by the number (20) 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 22141680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37444032).

22141680 is an abundant number, since it is smaller than the sum of its proper divisors (52746384).

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

22141680 is a wasteful number, since it uses less digits than its factorization.

22141680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8414 (or 8408 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 22141680 is about 4705.4946605006. The cubic root of 22141680 is about 280.8041508790.

The spelling of 22141680 in words is "twenty-two million, one hundred forty-one thousand, six hundred eighty".