223031040 has 108 divisors (see below), whose sum is σ = 715273272. Its totient is φ = 59228160.

The previous prime is 223030991. The next prime is 223031057. The reversal of 223031040 is 40130322.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 925320 + ... + 925560.

Almost surely, 2^223031040 is an apocalyptic number.

223031040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223031040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357636636).

223031040 is an abundant number, since it is smaller than the sum of its proper divisors (492242232).

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

223031040 is an frugal number, since it uses more digits than its factorization.

223031040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 223031040 is about 14934.2237829758. The cubic root of 223031040 is about 606.4408342443.

Multiplying 223031040 by its sum of digits (15), we get a square (3345465600 = 57840²).

223031040 divided by its sum of digits (15) gives a square (14868736 = 3856²).

Adding to 223031040 its reverse (40130322), we get a palindrome (263161362).

The spelling of 223031040 in words is "two hundred twenty-three million, thirty-one thousand, forty".