22198620 has 48 divisors (see below), whose sum is σ = 62375040. Its totient is φ = 5898816.

The previous prime is 22198607. The next prime is 22198637. The reversal of 22198620 is 2689122.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24699 + ... + 25581.

It is an arithmetic number, because the mean of its divisors is an integer number (1299480).

Almost surely, 2^22198620 is an apocalyptic number.

22198620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22198620 is an abundant number, since it is smaller than the sum of its proper divisors (40176420).

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

22198620 is a wasteful number, since it uses less digits than its factorization.

22198620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 22198620 is about 4711.5411491358. The cubic root of 22198620 is about 281.0446520820.

The spelling of 22198620 in words is "twenty-two million, one hundred ninety-eight thousand, six hundred twenty".