22198715 has 24 divisors (see below), whose sum is σ = 33808752. Its totient is φ = 13836480.

The previous prime is 22198699. The next prime is 22198721. The reversal of 22198715 is 51789122.

It is not a de Polignac number, because 22198715 - 2⁴ = 22198699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1424 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1408698).

Almost surely, 2^22198715 is an apocalyptic number.

22198715 is a deficient number, since it is larger than the sum of its proper divisors (11610037).

22198715 is a wasteful number, since it uses less digits than its factorization.

22198715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8267 (or 8260 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 22198715 is about 4711.5512307519. The cubic root of 22198715 is about 281.0450529958.

The spelling of 22198715 in words is "twenty-two million, one hundred ninety-eight thousand, seven hundred fifteen".