223452578 has 16 divisors (see below), whose sum is σ = 353965920. Its totient is φ = 105502176.

The previous prime is 223452547. The next prime is 223452623. The reversal of 223452578 is 875254322.

223452578 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×223452578² = 99862109229692168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501 + ... + 21287.

It is an arithmetic number, because the mean of its divisors is an integer number (22122870).

Almost surely, 2^223452578 is an apocalyptic number.

223452578 is a deficient number, since it is larger than the sum of its proper divisors (130513342).

223452578 is a wasteful number, since it uses less digits than its factorization.

223452578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19121.

The product of its digits is 134400, while the sum is 38.

The square root of 223452578 is about 14948.3302746494. The cubic root of 223452578 is about 606.8226599756.

The spelling of 223452578 in words is "two hundred twenty-three million, four hundred fifty-two thousand, five hundred seventy-eight".