22553398 has 8 divisors (see below), whose sum is σ = 38662992. Its totient is φ = 9665736.

The previous prime is 22553393. The next prime is 22553413. The reversal of 22553398 is 89335522.

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

It is a super-2 number, since 2×22553398² = 1017311522692808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553393) by changing a digit.

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, 805465 + ... + 805492.

It is an arithmetic number, because the mean of its divisors is an integer number (4832874).

Almost surely, 2^22553398 is an apocalyptic number.

22553398 is a deficient number, since it is larger than the sum of its proper divisors (16109594).

22553398 is a wasteful number, since it uses less digits than its factorization.

22553398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610966.

The product of its digits is 64800, while the sum is 37.

The square root of 22553398 is about 4749.0417980894. The cubic root of 22553398 is about 282.5339630767.

The spelling of 22553398 in words is "twenty-two million, five hundred fifty-three thousand, three hundred ninety-eight".