6402533 has 12 divisors (see below), whose sum is σ = 6940128. Its totient is φ = 5895120.

The previous prime is 6402527. The next prime is 6402541. The reversal of 6402533 is 3352046.

It is not a de Polignac number, because 6402533 - 2¹⁰ = 6401509 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6402499 and 6402508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19178 + ... + 19508.

It is an arithmetic number, because the mean of its divisors is an integer number (578344).

Almost surely, 2^6402533 is an apocalyptic number.

It is an amenable number.

6402533 is a deficient number, since it is larger than the sum of its proper divisors (537595).

6402533 is a wasteful number, since it uses less digits than its factorization.

6402533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 6402533 is about 2530.3227066918. The cubic root of 6402533 is about 185.6880441649.

Adding to 6402533 its reverse (3352046), we get a palindrome (9754579).

The spelling of 6402533 in words is "six million, four hundred two thousand, five hundred thirty-three".