6291040 has 96 divisors (see below), whose sum is σ = 17527104. Its totient is φ = 2088960.

The previous prime is 6291011. The next prime is 6291041. The reversal of 6291040 is 401926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6291041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45852 + ... + 45988.

It is an arithmetic number, because the mean of its divisors is an integer number (182574).

Almost surely, 2^6291040 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 6291040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8763552).

6291040 is an abundant number, since it is smaller than the sum of its proper divisors (11236064).

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

6291040 is a wasteful number, since it uses less digits than its factorization.

6291040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6291040 is about 2508.1945698051. The cubic root of 6291040 is about 184.6038760632.

Adding to 6291040 its reverse (401926), we get a palindrome (6692966).

The spelling of 6291040 in words is "six million, two hundred ninety-one thousand, forty".