22229998 has 16 divisors (see below), whose sum is σ = 38223360. Its totient is φ = 9498456.

The previous prime is 22229993. The next prime is 22230023. The reversal of 22229998 is 89992222.

It is a super-2 number, since 2×22229998² = 988345622160008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22229993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2815 + ... + 7237.

It is an arithmetic number, because the mean of its divisors is an integer number (2388960).

Almost surely, 2^22229998 is an apocalyptic number.

22229998 is a deficient number, since it is larger than the sum of its proper divisors (15993362).

22229998 is a wasteful number, since it uses less digits than its factorization.

22229998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791.

The product of its digits is 93312, while the sum is 43.

The square root of 22229998 is about 4714.8698815556. The cubic root of 22229998 is about 281.1770096682.

The spelling of 22229998 in words is "twenty-two million, two hundred twenty-nine thousand, nine hundred ninety-eight".