22002998 has 8 divisors (see below), whose sum is σ = 34945992. Its totient is φ = 10354336.

The previous prime is 22002991. The next prime is 22003013. The reversal of 22002998 is 89920022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323540 + ... + 323607.

It is an arithmetic number, because the mean of its divisors is an integer number (4368249).

Almost surely, 2^22002998 is an apocalyptic number.

22002998 is a deficient number, since it is larger than the sum of its proper divisors (12942994).

22002998 is a wasteful number, since it uses less digits than its factorization.

22002998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647166.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 22002998 is about 4690.7353368102. The cubic root of 22002998 is about 280.2166605388.

The spelling of 22002998 in words is "twenty-two million, two thousand, nine hundred ninety-eight".