223428400 has 60 divisors (see below), whose sum is σ = 578091472. Its totient is φ = 82494720.

The previous prime is 223428397. The next prime is 223428407. The reversal of 223428400 is 4824322.

223428400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (223428407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16284 + ... + 26683.

Almost surely, 2^223428400 is an apocalyptic number.

223428400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223428400 is an abundant number, since it is smaller than the sum of its proper divisors (354663072).

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

223428400 is a wasteful number, since it uses less digits than its factorization.

223428400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42998 (or 42987 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 223428400 is about 14947.5215336858. The cubic root of 223428400 is about 606.8007727254.

The spelling of 223428400 in words is "two hundred twenty-three million, four hundred twenty-eight thousand, four hundred".