402300340 has 48 divisors (see below), whose sum is σ = 917936208. Its totient is φ = 147216384.

The previous prime is 402300331. The next prime is 402300403. The reversal of 402300340 is 43003204.

It can be written as a sum of positive squares in 8 ways, for example, as 18610596 + 383689744 = 4314^2 + 19588^2 .

It is a congruent number.

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, 22534 + ... + 36226.

It is an arithmetic number, because the mean of its divisors is an integer number (19123671).

Almost surely, 2^402300340 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 402300340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458968104).

402300340 is an abundant number, since it is smaller than the sum of its proper divisors (515635868).

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

402300340 is a wasteful number, since it uses less digits than its factorization.

402300340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13828 (or 13826 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 402300340 is about 20057.4260562017. The cubic root of 402300340 is about 738.2160216416.

Adding to 402300340 its reverse (43003204), we get a palindrome (445303544).

The spelling of 402300340 in words is "four hundred two million, three hundred thousand, three hundred forty".