238409223 has 16 divisors (see below), whose sum is σ = 342644736. Its totient is φ = 146579040.

The previous prime is 238409221. The next prime is 238409231. The reversal of 238409223 is 322904832.

It is not a de Polignac number, because 238409223 - 2¹ = 238409221 is a prime.

It is a super-2 number, since 2×238409223² = 113677915222927458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238409221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55938 + ... + 60048.

It is an arithmetic number, because the mean of its divisors is an integer number (21415296).

Almost surely, 2^238409223 is an apocalyptic number.

238409223 is a deficient number, since it is larger than the sum of its proper divisors (104235513).

238409223 is a wasteful number, since it uses less digits than its factorization.

238409223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 238409223 is about 15440.5059178772. The cubic root of 238409223 is about 620.0704247093.

The spelling of 238409223 in words is "two hundred thirty-eight million, four hundred nine thousand, two hundred twenty-three".