19320880 has 20 divisors (see below), whose sum is σ = 44921232. Its totient is φ = 7728320.

The previous prime is 19320877. The next prime is 19320887. The reversal of 19320880 is 8802391.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (19320887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120676 + ... + 120835.

Almost surely, 2^19320880 is an apocalyptic number.

19320880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19320880 is an abundant number, since it is smaller than the sum of its proper divisors (25600352).

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

19320880 is a wasteful number, since it uses less digits than its factorization.

19320880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241524 (or 241518 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 19320880 is about 4395.5522974935. The cubic root of 19320880 is about 268.3339565932. Note that the first 3 decimals are identical.

The spelling of 19320880 in words is "nineteen million, three hundred twenty thousand, eight hundred eighty".