223329638 has 16 divisors (see below), whose sum is σ = 396053280. Its totient is φ = 92412096.

The previous prime is 223329619. The next prime is 223329649. The reversal of 223329638 is 836923322.

It is a super-2 number, since 2×223329638² = 99752254418422088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274631 + ... + 275442.

It is an arithmetic number, because the mean of its divisors is an integer number (24753330).

Almost surely, 2^223329638 is an apocalyptic number.

223329638 is a deficient number, since it is larger than the sum of its proper divisors (172723642).

223329638 is a wasteful number, since it uses less digits than its factorization.

223329638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550111.

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

The square root of 223329638 is about 14944.2175439198. The cubic root of 223329638 is about 606.7113515503.

The spelling of 223329638 in words is "two hundred twenty-three million, three hundred twenty-nine thousand, six hundred thirty-eight".