223243402 has 4 divisors (see below), whose sum is σ = 334865106. Its totient is φ = 111621700.

The previous prime is 223243381. The next prime is 223243411. The reversal of 223243402 is 204342322.

223243402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204342322 = 2 ⋅102171161.

It can be written as a sum of positive squares in only one way, i.e., 201611601 + 21631801 = 14199^2 + 4651^2 .

It is a super-3 number, since 3×223243402³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55810849 + ... + 55810852.

Almost surely, 2^223243402 is an apocalyptic number.

223243402 is a deficient number, since it is larger than the sum of its proper divisors (111621704).

223243402 is a wasteful number, since it uses less digits than its factorization.

223243402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111621703.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 223243402 is about 14941.3320022011. The cubic root of 223243402 is about 606.6332501150.

Adding to 223243402 its reverse (204342322), we get a palindrome (427585724).

The spelling of 223243402 in words is "two hundred twenty-three million, two hundred forty-three thousand, four hundred two".