223400632 has 128 divisors (see below), whose sum is σ = 561254400. Its totient is φ = 80870400.

The previous prime is 223400627. The next prime is 223400641. The reversal of 223400632 is 236004322.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428532 + ... + 429052.

It is an arithmetic number, because the mean of its divisors is an integer number (4384800).

Almost surely, 2^223400632 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 223400632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280627200).

223400632 is an abundant number, since it is smaller than the sum of its proper divisors (337853768).

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

223400632 is a wasteful number, since it uses less digits than its factorization.

223400632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 223400632 is about 14946.5926551840. The cubic root of 223400632 is about 606.7756336623.

Adding to 223400632 its reverse (236004322), we get a palindrome (459404954).

The spelling of 223400632 in words is "two hundred twenty-three million, four hundred thousand, six hundred thirty-two".