223420578 has 32 divisors (see below), whose sum is σ = 461078016. Its totient is φ = 72119808.

The previous prime is 223420573. The next prime is 223420607. The reversal of 223420578 is 875024322.

223420578 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (223420573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47250 + ... + 51762.

It is an arithmetic number, because the mean of its divisors is an integer number (14408688).

Almost surely, 2^223420578 is an apocalyptic number.

223420578 is an abundant number, since it is smaller than the sum of its proper divisors (237657438).

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

223420578 is a wasteful number, since it uses less digits than its factorization.

223420578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 223420578 is about 14947.2598826675. The cubic root of 223420578 is about 606.7936914844.

The spelling of 223420578 in words is "two hundred twenty-three million, four hundred twenty thousand, five hundred seventy-eight".