22109419 has 4 divisors (see below), whose sum is σ = 22126896. Its totient is φ = 22091944.

The previous prime is 22109383. The next prime is 22109429. The reversal of 22109419 is 91490122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22109419 is a prime.

It is a super-2 number, since 2×22109419² = 977652817035122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22109429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6679 + ... + 9424.

It is an arithmetic number, because the mean of its divisors is an integer number (5531724).

Almost surely, 2^22109419 is an apocalyptic number.

22109419 is a deficient number, since it is larger than the sum of its proper divisors (17477).

22109419 is a wasteful number, since it uses less digits than its factorization.

22109419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17476.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 22109419 is about 4702.0653972483. The cubic root of 22109419 is about 280.6677049541.

The spelling of 22109419 in words is "twenty-two million, one hundred nine thousand, four hundred nineteen".