223051320 has 160 divisors (see below), whose sum is σ = 767614320. Its totient is φ = 58060800.

The previous prime is 223051289. The next prime is 223051321. The reversal of 223051320 is 23150322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 223051293 and 223051302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223051321) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 138520 + ... + 140120.

Almost surely, 2^223051320 is an apocalyptic number.

223051320 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 223051320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383807160).

223051320 is an abundant number, since it is smaller than the sum of its proper divisors (544563000).

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

223051320 is a wasteful number, since it uses less digits than its factorization.

223051320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1654 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 223051320 is about 14934.9027449127. The cubic root of 223051320 is about 606.4592147163.

The spelling of 223051320 in words is "two hundred twenty-three million, fifty-one thousand, three hundred twenty".