19282220 has 48 divisors (see below), whose sum is σ = 42069888. Its totient is φ = 7418880.

The previous prime is 19282181. The next prime is 19282231. The reversal of 19282220 is 2228291.

It is a self number, because there is not a number n which added to its sum of digits gives 19282220.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 68480 + ... + 68760.

It is an arithmetic number, because the mean of its divisors is an integer number (876456).

Almost surely, 2^19282220 is an apocalyptic number.

19282220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19282220 is an abundant number, since it is smaller than the sum of its proper divisors (22787668).

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

19282220 is a wasteful number, since it uses less digits than its factorization.

19282220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 19282220 is about 4391.1524683163. The cubic root of 19282220 is about 268.1548633429.

The spelling of 19282220 in words is "nineteen million, two hundred eighty-two thousand, two hundred twenty".