22919814 has 64 divisors (see below), whose sum is σ = 54432000. Its totient is φ = 7128000.

The previous prime is 22919803. The next prime is 22919821. The reversal of 22919814 is 41891922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91189 + ... + 91439.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^22919814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22919814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27216000).

22919814 is an abundant number, since it is smaller than the sum of its proper divisors (31512186).

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

22919814 is a wasteful number, since it uses less digits than its factorization.

22919814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 364 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 22919814 is about 4787.4642557412. The cubic root of 22919814 is about 284.0558228560.

The spelling of 22919814 in words is "twenty-two million, nine hundred nineteen thousand, eight hundred fourteen".