402313223 has 16 divisors (see below), whose sum is σ = 441893760. Its totient is φ = 364041216.

The previous prime is 402313207. The next prime is 402313229. The reversal of 402313223 is 322313204.

It is a cyclic number.

It is not a de Polignac number, because 402313223 - 2⁴ = 402313207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402313195 and 402313204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402313229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135986 + ... + 138912.

It is an arithmetic number, because the mean of its divisors is an integer number (27618360).

Almost surely, 2^402313223 is an apocalyptic number.

402313223 is a deficient number, since it is larger than the sum of its proper divisors (39580537).

402313223 is a wasteful number, since it uses less digits than its factorization.

402313223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 402313223 is about 20057.7472065035. The cubic root of 402313223 is about 738.2239016046.

Adding to 402313223 its reverse (322313204), we get a palindrome (724626427).

The spelling of 402313223 in words is "four hundred two million, three hundred thirteen thousand, two hundred twenty-three".