223403138 has 8 divisors (see below), whose sum is σ = 382976832. Its totient is φ = 95744196.

The previous prime is 223403123. The next prime is 223403177. The reversal of 223403138 is 831304322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7978670 + ... + 7978697.

It is an arithmetic number, because the mean of its divisors is an integer number (47872104).

Almost surely, 2^223403138 is an apocalyptic number.

223403138 is a deficient number, since it is larger than the sum of its proper divisors (159573694).

223403138 is a wasteful number, since it uses less digits than its factorization.

223403138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15957376.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 223403138 is about 14946.6764867645. The cubic root of 223403138 is about 606.7779024921. Note that the first 3 decimals are identical.

The spelling of 223403138 in words is "two hundred twenty-three million, four hundred three thousand, one hundred thirty-eight".