402836320 has 96 divisors (see below), whose sum is σ = 989404416. Its totient is φ = 154828800.

The previous prime is 402836281. The next prime is 402836327. The reversal of 402836320 is 23638204.

It is a super-3 number, since 3×402836320³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402836327) 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, 1195192 + ... + 1195528.

It is an arithmetic number, because the mean of its divisors is an integer number (10306296).

Almost surely, 2^402836320 is an apocalyptic number.

402836320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402836320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494702208).

402836320 is an abundant number, since it is smaller than the sum of its proper divisors (586568096).

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

402836320 is a wasteful number, since it uses less digits than its factorization.

402836320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 402836320 is about 20070.7827450750. The cubic root of 402836320 is about 738.5437149914.

The spelling of 402836320 in words is "four hundred two million, eight hundred thirty-six thousand, three hundred twenty".