223442399 has 4 divisors (see below), whose sum is σ = 224418360. Its totient is φ = 222466440.

The previous prime is 223442393. The next prime is 223442437. The reversal of 223442399 is 993244322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223442399 - 2⁴ = 223442383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223442393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487637 + ... + 488094.

It is an arithmetic number, because the mean of its divisors is an integer number (56104590).

Almost surely, 2^223442399 is an apocalyptic number.

223442399 is a deficient number, since it is larger than the sum of its proper divisors (975961).

223442399 is an equidigital number, since it uses as much as digits as its factorization.

223442399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975960.

The product of its digits is 93312, while the sum is 38.

The square root of 223442399 is about 14947.9897979628. The cubic root of 223442399 is about 606.8134455796.

The spelling of 223442399 in words is "two hundred twenty-three million, four hundred forty-two thousand, three hundred ninety-nine".