223770228 has 48 divisors (see below), whose sum is σ = 585004224. Its totient is φ = 65975040.

The previous prime is 223770223. The next prime is 223770259. The reversal of 223770228 is 822077322.

It is a super-2 number, since 2×223770228² = 100146229878343968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223770221) 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, 18025 + ... + 27792.

It is an arithmetic number, because the mean of its divisors is an integer number (12187588).

Almost surely, 2^223770228 is an apocalyptic number.

It is an amenable number.

223770228 is an abundant number, since it is smaller than the sum of its proper divisors (361233996).

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

223770228 is a wasteful number, since it uses less digits than its factorization.

223770228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45872 (or 45870 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 223770228 is about 14958.9514338405. The cubic root of 223770228 is about 607.1100676416.

The spelling of 223770228 in words is "two hundred twenty-three million, seven hundred seventy thousand, two hundred twenty-eight".