19225880 has 16 divisors (see below), whose sum is σ = 43258320. Its totient is φ = 7690336.

The previous prime is 19225879. The next prime is 19225883. The reversal of 19225880 is 8852291.

It is a self number, because there is not a number n which added to its sum of digits gives 19225880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19225883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240284 + ... + 240363.

It is an arithmetic number, because the mean of its divisors is an integer number (2703645).

Almost surely, 2^19225880 is an apocalyptic number.

19225880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19225880 is an abundant number, since it is smaller than the sum of its proper divisors (24032440).

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

19225880 is a wasteful number, since it uses less digits than its factorization.

19225880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480658 (or 480654 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 19225880 is about 4384.7326030215. The cubic root of 19225880 is about 267.8934379939.

The spelling of 19225880 in words is "nineteen million, two hundred twenty-five thousand, eight hundred eighty".