6293440 has 56 divisors (see below), whose sum is σ = 15252192. Its totient is φ = 2472960.

The previous prime is 6293429. The next prime is 6293447. The reversal of 6293440 is 443926.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 6293399 and 6293408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6293447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22582 + ... + 22858.

Almost surely, 2^6293440 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 6293440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7626096).

6293440 is an abundant number, since it is smaller than the sum of its proper divisors (8958752).

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

6293440 is a wasteful number, since it uses less digits than its factorization.

6293440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6293440 is about 2508.6729559670. The cubic root of 6293440 is about 184.6273482276.

The spelling of 6293440 in words is "six million, two hundred ninety-three thousand, four hundred forty".