223442307 has 20 divisors (see below), whose sum is σ = 364129656. Its totient is φ = 135419040.

The previous prime is 223442281. The next prime is 223442357. The reversal of 223442307 is 703244322.

223442307 is a `hidden beast` number, since 2 + 234 + 423 + 0 + 7 = 666.

223442307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223442307 - 2⁷ = 223442179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (223442357) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 124498 + ... + 126279.

Almost surely, 2^223442307 is an apocalyptic number.

223442307 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

223442307 is a deficient number, since it is larger than the sum of its proper divisors (140687349).

223442307 is a wasteful number, since it uses less digits than its factorization.

223442307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250800 (or 250791 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 223442307 is about 14947.9867206256. The cubic root of 223442307 is about 606.8133622966.

Adding to 223442307 its reverse (703244322), we get a palindrome (926686629).

The spelling of 223442307 in words is "two hundred twenty-three million, four hundred forty-two thousand, three hundred seven".