223742307 has 4 divisors (see below), whose sum is σ = 298323080. Its totient is φ = 149161536.

The previous prime is 223742291. The next prime is 223742329. The reversal of 223742307 is 703247322.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 223742307 - 2⁴ = 223742291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223742357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37290382 + ... + 37290387.

It is an arithmetic number, because the mean of its divisors is an integer number (74580770).

Almost surely, 2^223742307 is an apocalyptic number.

223742307 is a deficient number, since it is larger than the sum of its proper divisors (74580773).

223742307 is an equidigital number, since it uses as much as digits as its factorization.

223742307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74580772.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 223742307 is about 14958.0181508113. The cubic root of 223742307 is about 607.0848158086.

Adding to 223742307 its reverse (703247322), we get a palindrome (926989629).

It can be divided in two parts, 2237 and 42307, that added together give a palindrome (44544).

The spelling of 223742307 in words is "two hundred twenty-three million, seven hundred forty-two thousand, three hundred seven".