22019138 has 8 divisors (see below), whose sum is σ = 34767120. Its totient is φ = 10430100.

The previous prime is 22019099. The next prime is 22019141. The reversal of 22019138 is 83191022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289688 + ... + 289763.

It is an arithmetic number, because the mean of its divisors is an integer number (4345890).

Almost surely, 2^22019138 is an apocalyptic number.

22019138 is a deficient number, since it is larger than the sum of its proper divisors (12747982).

22019138 is a wasteful number, since it uses less digits than its factorization.

22019138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579472.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 22019138 is about 4692.4554339919. The cubic root of 22019138 is about 280.2851601663.

The spelling of 22019138 in words is "twenty-two million, nineteen thousand, one hundred thirty-eight".