223442398 has 4 divisors (see below), whose sum is σ = 335163600. Its totient is φ = 111721198.

The previous prime is 223442393. The next prime is 223442437. The reversal of 223442398 is 893244322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893244322 = 2 ⋅446622161.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55860598 + ... + 55860601.

It is an arithmetic number, because the mean of its divisors is an integer number (83790900).

Almost surely, 2^223442398 is an apocalyptic number.

223442398 is a deficient number, since it is larger than the sum of its proper divisors (111721202).

223442398 is a wasteful number, since it uses less digits than its factorization.

223442398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111721201.

The product of its digits is 82944, while the sum is 37.

The square root of 223442398 is about 14947.9897645135. The cubic root of 223442398 is about 606.8134446743.

It can be divided in two parts, 22344 and 2398, that added together give a palindrome (24742).

The spelling of 223442398 in words is "two hundred twenty-three million, four hundred forty-two thousand, three hundred ninety-eight".