22207998 has 24 divisors (see below), whose sum is σ = 46881288. Its totient is φ = 7012368.

The previous prime is 22207973. The next prime is 22208009. The reversal of 22207998 is 89970222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2961 + ... + 7292.

It is an arithmetic number, because the mean of its divisors is an integer number (1953387).

Almost surely, 2^22207998 is an apocalyptic number.

22207998 is an abundant number, since it is smaller than the sum of its proper divisors (24673290).

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

22207998 is a wasteful number, since it uses less digits than its factorization.

22207998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10296 (or 10277 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 22207998 is about 4712.5362598075. The cubic root of 22207998 is about 281.0842230956.

The spelling of 22207998 in words is "twenty-two million, two hundred seven thousand, nine hundred ninety-eight".