22019361 has 16 divisors (see below), whose sum is σ = 36134784. Its totient is φ = 11614464.

The previous prime is 22019357. The next prime is 22019363. The reversal of 22019361 is 16391022.

It is not a de Polignac number, because 22019361 - 2² = 22019357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22019363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40056 + ... + 40601.

It is an arithmetic number, because the mean of its divisors is an integer number (2258424).

Almost surely, 2^22019361 is an apocalyptic number.

22019361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22019361 is a deficient number, since it is larger than the sum of its proper divisors (14115423).

22019361 is a wasteful number, since it uses less digits than its factorization.

22019361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80680.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 22019361 is about 4692.4791954787. The cubic root of 22019361 is about 280.2861063641.

The spelling of 22019361 in words is "twenty-two million, nineteen thousand, three hundred sixty-one".