19922880 has 56 divisors (see below), whose sum is σ = 63258192. Its totient is φ = 5312512.

The previous prime is 19922869. The next prime is 19922891. The reversal of 19922880 is 8822991.

It is an interprime number because it is at equal distance from previous prime (19922869) and next prime (19922891).

It is a super-2 number, since 2×19922880² = 793842294988800, which contains 22 as substring.

It is a congruent number.

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, 9417 + ... + 11336.

Almost surely, 2^19922880 is an apocalyptic number.

19922880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19922880 is an abundant number, since it is smaller than the sum of its proper divisors (43335312).

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

19922880 is a wasteful number, since it uses less digits than its factorization.

19922880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20773 (or 20763 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 19922880 is about 4463.5053489382. The cubic root of 19922880 is about 271.0924191080.

It can be divided in two parts, 19922 and 880, that added together give a palindrome (20802).

The spelling of 19922880 in words is "nineteen million, nine hundred twenty-two thousand, eight hundred eighty".