223023402 has 64 divisors (see below), whose sum is σ = 578016000. Its totient is φ = 63715680.

The previous prime is 223023389. The next prime is 223023421. The reversal of 223023402 is 204320322.

223023402 is a `hidden beast` number, since 22 + 302 + 340 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12502 + ... + 24542.

It is an arithmetic number, because the mean of its divisors is an integer number (9031500).

Almost surely, 2^223023402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223023402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289008000).

223023402 is an abundant number, since it is smaller than the sum of its proper divisors (354992598).

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

223023402 is a wasteful number, since it uses less digits than its factorization.

223023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12073 (or 12053 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 223023402 is about 14933.9680594275. The cubic root of 223023402 is about 606.4339113694.

Adding to 223023402 its reverse (204320322), we get a palindrome (427343724).

The spelling of 223023402 in words is "two hundred twenty-three million, twenty-three thousand, four hundred two".