223438455 has 12 divisors (see below), whose sum is σ = 387293400. Its totient is φ = 119167152.

The previous prime is 223438451. The next prime is 223438459. The reversal of 223438455 is 554834322.

223438455 is a `hidden beast` number, since 223 + 4 + 384 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (223438451) and next prime (223438459).

It is not a de Polignac number, because 223438455 - 2² = 223438451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223438451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2482605 + ... + 2482694.

It is an arithmetic number, because the mean of its divisors is an integer number (32274450).

Almost surely, 2^223438455 is an apocalyptic number.

223438455 is a deficient number, since it is larger than the sum of its proper divisors (163854945).

223438455 is a wasteful number, since it uses less digits than its factorization.

223438455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965310 (or 4965307 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 223438455 is about 14947.8578732874. The cubic root of 223438455 is about 606.8098752540.

The spelling of 223438455 in words is "two hundred twenty-three million, four hundred thirty-eight thousand, four hundred fifty-five".