223100442 has 12 divisors (see below), whose sum is σ = 483384330. Its totient is φ = 74366808.

The previous prime is 223100441. The next prime is 223100461. The reversal of 223100442 is 244001322.

223100442 is a `hidden beast` number, since 223 + 1 + 0 + 0 + 442 = 666.

223100442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 140635881 + 82464561 = 11859^2 + 9081^2 .

It is a super-3 number, since 3×223100442³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12394469 = 223100442 / (2 + 2 + 3 + 1 + 0 + 0 + 4 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (223100441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6197217 + ... + 6197252.

Almost surely, 2^223100442 is an apocalyptic number.

223100442 is an abundant number, since it is smaller than the sum of its proper divisors (260283888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223100442 is a wasteful number, since it uses less digits than its factorization.

223100442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12394477 (or 12394474 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 223100442 is about 14936.5471913692. The cubic root of 223100442 is about 606.5037310828.

Adding to 223100442 its reverse (244001322), we get a palindrome (467101764).

The spelling of 223100442 in words is "two hundred twenty-three million, one hundred thousand, four hundred forty-two".