22019190 has 16 divisors (see below), whose sum is σ = 52846128. Its totient is φ = 5871776.

The previous prime is 22019183. The next prime is 22019191. The reversal of 22019190 is 9191022.

It is a super-2 number, since 2×22019190² = 969689456512200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22019190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22019191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366957 + ... + 367016.

It is an arithmetic number, because the mean of its divisors is an integer number (3302883).

Almost surely, 2^22019190 is an apocalyptic number.

22019190 is an abundant number, since it is smaller than the sum of its proper divisors (30826938).

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

22019190 is a wasteful number, since it uses less digits than its factorization.

22019190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733983.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 22019190 is about 4692.4609747978. The cubic root of 22019190 is about 280.2853808049.

The spelling of 22019190 in words is "twenty-two million, nineteen thousand, one hundred ninety".