6403026 has 48 divisors (see below), whose sum is σ = 15431040. Its totient is φ = 1764000.

The previous prime is 6403021. The next prime is 6403031. The reversal of 6403026 is 6203046.

6403026 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6403021) and next prime (6403031).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 6402993 and 6403011.

It is not an unprimeable number, because it can be changed into a prime (6403021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8151 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (321480).

Almost surely, 2^6403026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6403026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7715520).

6403026 is an abundant number, since it is smaller than the sum of its proper divisors (9028014).

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

6403026 is a wasteful number, since it uses less digits than its factorization.

6403026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 6403026 is about 2530.4201232206. The cubic root of 6403026 is about 185.6928100836.

The spelling of 6403026 in words is "six million, four hundred three thousand, twenty-six".