223402402 has 8 divisors (see below), whose sum is σ = 335230236. Its totient is φ = 111658992.

The previous prime is 223402397. The next prime is 223402409. The reversal of 223402402 is 204204322.

It can be written as a sum of positive squares in 2 ways, for example, as 223233481 + 168921 = 14941^2 + 411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 223402402.

It is not an unprimeable number, because it can be changed into a prime (223402409) 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, 14013 + ... + 25360.

Almost surely, 2^223402402 is an apocalyptic number.

223402402 is a deficient number, since it is larger than the sum of its proper divisors (111827834).

223402402 is a wasteful number, since it uses less digits than its factorization.

223402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42212.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 223402402 is about 14946.6518658862. The cubic root of 223402402 is about 606.7772361496. Note that the first 3 decimals are identical.

Adding to 223402402 its reverse (204204322), we get a palindrome (427606724).

It can be divided in two parts, 22340 and 2402, that added together give a palindrome (24742).

The spelling of 223402402 in words is "two hundred twenty-three million, four hundred two thousand, four hundred two".