402304868 has 48 divisors (see below), whose sum is σ = 842096640. Its totient is φ = 164428704.

The previous prime is 402304823. The next prime is 402304897. The reversal of 402304868 is 868403204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282005 + ... + 283427.

It is an arithmetic number, because the mean of its divisors is an integer number (17543680).

Almost surely, 2^402304868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402304868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421048320).

402304868 is an abundant number, since it is smaller than the sum of its proper divisors (439791772).

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

402304868 is a wasteful number, since it uses less digits than its factorization.

402304868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 402304868 is about 20057.5389317832. The cubic root of 402304868 is about 738.2187912387.

The spelling of 402304868 in words is "four hundred two million, three hundred four thousand, eight hundred sixty-eight".