22320998 has 32 divisors (see below), whose sum is σ = 39640320. Its totient is φ = 9228960.

The previous prime is 22320967. The next prime is 22321007. The reversal of 22320998 is 89902322.

It is a super-3 number, since 3×22320998³ (a number of 23 digits) contains 333 as substring.

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, 50165 + ... + 50607.

It is an arithmetic number, because the mean of its divisors is an integer number (1238760).

Almost surely, 2^22320998 is an apocalyptic number.

22320998 is a deficient number, since it is larger than the sum of its proper divisors (17319322).

22320998 is a wasteful number, since it uses less digits than its factorization.

22320998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 22320998 is about 4724.5103449987. The cubic root of 22320998 is about 281.5601596933.

The spelling of 22320998 in words is "twenty-two million, three hundred twenty thousand, nine hundred ninety-eight".