223993476 has 144 divisors (see below), whose sum is σ = 681827328. Its totient is φ = 60652800.

The previous prime is 223993463. The next prime is 223993499. The reversal of 223993476 is 674399322.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 413766 + ... + 414306.

It is an arithmetic number, because the mean of its divisors is an integer number (4734912).

Almost surely, 2^223993476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223993476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340913664).

223993476 is an abundant number, since it is smaller than the sum of its proper divisors (457833852).

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

223993476 is a wasteful number, since it uses less digits than its factorization.

223993476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 637 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 223993476 is about 14966.4115939660. The cubic root of 223993476 is about 607.3118982743.

The spelling of 223993476 in words is "two hundred twenty-three million, nine hundred ninety-three thousand, four hundred seventy-six".