223601402 has 4 divisors (see below), whose sum is σ = 335402106. Its totient is φ = 111800700.

The previous prime is 223601387. The next prime is 223601429. The reversal of 223601402 is 204106322.

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

It can be written as a sum of positive squares in only one way, i.e., 120802081 + 102799321 = 10991^2 + 10139^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55900349 + ... + 55900352.

Almost surely, 2^223601402 is an apocalyptic number.

223601402 is a deficient number, since it is larger than the sum of its proper divisors (111800704).

223601402 is a wasteful number, since it uses less digits than its factorization.

223601402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111800703.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 223601402 is about 14953.3073933495. The cubic root of 223601402 is about 606.9573488574.

Adding to 223601402 its reverse (204106322), we get a palindrome (427707724).

The spelling of 223601402 in words is "two hundred twenty-three million, six hundred one thousand, four hundred two".