223444396 has 72 divisors (see below), whose sum is σ = 484608096. Its totient is φ = 88258560.

The previous prime is 223444393. The next prime is 223444409. The reversal of 223444396 is 693444322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223444393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 428616 + ... + 429136.

It is an arithmetic number, because the mean of its divisors is an integer number (6730668).

Almost surely, 2^223444396 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 223444396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242304048).

223444396 is an abundant number, since it is smaller than the sum of its proper divisors (261163700).

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

223444396 is a wasteful number, since it uses less digits than its factorization.

223444396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 600 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 223444396 is about 14948.0565960930. The cubic root of 223444396 is about 606.8152533577.

The spelling of 223444396 in words is "two hundred twenty-three million, four hundred forty-four thousand, three hundred ninety-six".