22194400 has 36 divisors (see below), whose sum is σ = 54184032. Its totient is φ = 8877440.

The previous prime is 22194373. The next prime is 22194427. The reversal of 22194400 is 449122.

It is an interprime number because it is at equal distance from previous prime (22194373) and next prime (22194427).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13072 + ... + 14671.

It is an arithmetic number, because the mean of its divisors is an integer number (1505112).

Almost surely, 2^22194400 is an apocalyptic number.

22194400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22194400 is an abundant number, since it is smaller than the sum of its proper divisors (31989632).

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

22194400 is a wasteful number, since it uses less digits than its factorization.

22194400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27763 (or 27750 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22194400 is about 4711.0932913709. The cubic root of 22194400 is about 281.0268419119.

The spelling of 22194400 in words is "twenty-two million, one hundred ninety-four thousand, four hundred".