6402528 has 144 divisors (see below), whose sum is σ = 20756736. Its totient is φ = 1854720.

The previous prime is 6402527. The next prime is 6402541. The reversal of 6402528 is 8252046.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402527) 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, 136201 + ... + 136247.

It is an arithmetic number, because the mean of its divisors is an integer number (144144).

Almost surely, 2^6402528 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 6402528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10378368).

6402528 is an abundant number, since it is smaller than the sum of its proper divisors (14354208).

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

6402528 is a wasteful number, since it uses less digits than its factorization.

6402528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 6402528 is about 2530.3217186753. The cubic root of 6402528 is about 185.6879958277.

The spelling of 6402528 in words is "six million, four hundred two thousand, five hundred twenty-eight".