223445808 has 30 divisors (see below), whose sum is σ = 625338324. Its totient is φ = 74481888.

The previous prime is 223445771. The next prime is 223445813. The reversal of 223445808 is 808544322.

It is a super-2 number, since 2×223445808² = 99856058225545728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 5 ways as a sum of consecutive naturals, for example, 775710 + ... + 775997.

Almost surely, 2^223445808 is an apocalyptic number.

It is an amenable number.

223445808 is an abundant number, since it is smaller than the sum of its proper divisors (401892516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223445808 is a wasteful number, since it uses less digits than its factorization.

223445808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551721 (or 1551712 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 223445808 is about 14948.1038262383. The cubic root of 223445808 is about 606.8165315599.

The spelling of 223445808 in words is "two hundred twenty-three million, four hundred forty-five thousand, eight hundred eight".