402312300 has 144 divisors (see below), whose sum is σ = 1283251200. Its totient is φ = 96687360.

The previous prime is 402312299. The next prime is 402312301. The reversal of 402312300 is 3213204.

It is an interprime number because it is at equal distance from previous prime (402312299) and next prime (402312301).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 402312300.

It is not an unprimeable number, because it can be changed into a prime (402312301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166501 + ... + 168899.

Almost surely, 2^402312300 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 402312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641625600).

402312300 is an abundant number, since it is smaller than the sum of its proper divisors (880938900).

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

402312300 is a wasteful number, since it uses less digits than its factorization.

402312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 402312300 is about 20057.7241979243. The cubic root of 402312300 is about 738.2233370518.

Adding to 402312300 its reverse (3213204), we get a palindrome (405525504).

The spelling of 402312300 in words is "four hundred two million, three hundred twelve thousand, three hundred".