402313224 has 16 divisors (see below), whose sum is σ = 1005783120. Its totient is φ = 134104400.

The previous prime is 402313207. The next prime is 402313229. The reversal of 402313224 is 422313204.

It is a self number, because there is not a number n which added to its sum of digits gives 402313224.

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 3 ways as a sum of consecutive naturals, for example, 8381502 + ... + 8381549.

It is an arithmetic number, because the mean of its divisors is an integer number (62861445).

Almost surely, 2^402313224 is an apocalyptic number.

It is an amenable number.

402313224 is an abundant number, since it is smaller than the sum of its proper divisors (603469896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402313224 is a wasteful number, since it uses less digits than its factorization.

402313224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16763060 (or 16763056 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402313224 is about 20057.7472314315. The cubic root of 402313224 is about 738.2239022163.

Adding to 402313224 its reverse (422313204), we get a palindrome (824626428).

The spelling of 402313224 in words is "four hundred two million, three hundred thirteen thousand, two hundred twenty-four".