22265998 has 8 divisors (see below), whose sum is σ = 34476480. Its totient is φ = 10773840.

The previous prime is 22265987. The next prime is 22266017. The reversal of 22265998 is 89956222.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179503 + ... + 179626.

It is an arithmetic number, because the mean of its divisors is an integer number (4309560).

Almost surely, 2^22265998 is an apocalyptic number.

22265998 is a deficient number, since it is larger than the sum of its proper divisors (12210482).

22265998 is a wasteful number, since it uses less digits than its factorization.

22265998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359162.

The product of its digits is 155520, while the sum is 43.

The square root of 22265998 is about 4718.6860459242. The cubic root of 22265998 is about 281.3287102829.

The spelling of 22265998 in words is "twenty-two million, two hundred sixty-five thousand, nine hundred ninety-eight".