22194270 has 64 divisors (see below), whose sum is σ = 67645440. Its totient is φ = 5072544.

The previous prime is 22194259. The next prime is 22194311. The reversal of 22194270 is 7249122.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 3982 + ... + 7761.

It is an arithmetic number, because the mean of its divisors is an integer number (1056960).

Almost surely, 2^22194270 is an apocalyptic number.

22194270 is an abundant number, since it is smaller than the sum of its proper divisors (45451170).

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

22194270 is a wasteful number, since it uses less digits than its factorization.

22194270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766 (or 11760 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 22194270 is about 4711.0794941287. The cubic root of 22194270 is about 281.0262932215.

The spelling of 22194270 in words is "twenty-two million, one hundred ninety-four thousand, two hundred seventy".