223378456 has 24 divisors (see below), whose sum is σ = 487216620. Its totient is φ = 95733456.

The previous prime is 223378447. The next prime is 223378471. The reversal of 223378456 is 654873322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 284530 + ... + 285313.

Almost surely, 2^223378456 is an apocalyptic number.

It is an amenable number.

223378456 is an abundant number, since it is smaller than the sum of its proper divisors (263838164).

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

223378456 is a wasteful number, since it uses less digits than its factorization.

223378456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569863 (or 569852 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 223378456 is about 14945.8507954549. The cubic root of 223378456 is about 606.7555556801.

The spelling of 223378456 in words is "two hundred twenty-three million, three hundred seventy-eight thousand, four hundred fifty-six".