6533040 has 80 divisors (see below), whose sum is σ = 20498688. Its totient is φ = 1721088.

The previous prime is 6533029. The next prime is 6533057. The reversal of 6533040 is 403356.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×6533040² = 85361223283200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6532998 and 6533016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39037 + ... + 39203.

Almost surely, 2^6533040 is an apocalyptic number.

6533040 is a gapful number since it is divisible by the number (60) 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 6533040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10249344).

6533040 is an abundant number, since it is smaller than the sum of its proper divisors (13965648).

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

6533040 is a wasteful number, since it uses less digits than its factorization.

6533040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 6533040 is about 2555.9812205883. The cubic root of 6533040 is about 186.9412342631.

Adding to 6533040 its reverse (403356), we get a palindrome (6936396).

The spelling of 6533040 in words is "six million, five hundred thirty-three thousand, forty".