223401000 has 128 divisors (see below), whose sum is σ = 704246400. Its totient is φ = 58956800.

The previous prime is 223400929. The next prime is 223401037. The reversal of 223401000 is 104322.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338671 + ... + 339329.

It is an arithmetic number, because the mean of its divisors is an integer number (5501925).

Almost surely, 2^223401000 is an apocalyptic number.

223401000 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 223401000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352123200).

223401000 is an abundant number, since it is smaller than the sum of its proper divisors (480845400).

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

223401000 is a wasteful number, since it uses less digits than its factorization.

223401000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 223401000 is about 14946.6049656770. The cubic root of 223401000 is about 606.7759668355.

Adding to 223401000 its reverse (104322), we get a palindrome (223505322).

The spelling of 223401000 in words is "two hundred twenty-three million, four hundred one thousand".