6402396 has 144 divisors (see below), whose sum is σ = 20659968. Its totient is φ = 1497600.

The previous prime is 6402391. The next prime is 6402401. The reversal of 6402396 is 6932046.

It is an interprime number because it is at equal distance from previous prime (6402391) and next prime (6402401).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156136 + ... + 156176.

It is an arithmetic number, because the mean of its divisors is an integer number (143472).

Almost surely, 2^6402396 is an apocalyptic number.

6402396 is a gapful number since it is divisible by the number (66) 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 6402396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10329984).

6402396 is an abundant number, since it is smaller than the sum of its proper divisors (14257572).

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

6402396 is a wasteful number, since it uses less digits than its factorization.

6402396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 6402396 is about 2530.2956349012. The cubic root of 6402396 is about 185.6867197180.

The spelling of 6402396 in words is "six million, four hundred two thousand, three hundred ninety-six".