6291456 has 44 divisors (see below), whose sum is σ = 16777212. Its totient is φ = 2097152.

The previous prime is 6291449. The next prime is 6291469. The reversal of 6291456 is 6541926.

It is a Jordan-Polya number, since it can be written as 4! ⋅ (2!)¹⁸.

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=128.

It is an Ulam number.

Its product of digits (12960) is a multiple of the sum of its prime divisors (5).

It is a nialpdrome in base 2, base 8 and base 16.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

In principle, a polygon with 6291456 sides can be constructed with ruler and compass.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097151 + 2097152 + 2097153.

Almost surely, 2^6291456 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 6291456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8388606).

6291456 is an abundant number, since it is smaller than the sum of its proper divisors (10485756).

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

6291456 is an frugal number, since it uses more digits than its factorization.

6291456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45 (or 5 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 6291456 is about 2508.2774966100. The cubic root of 6291456 is about 184.6079449993.

The spelling of 6291456 in words is "six million, two hundred ninety-one thousand, four hundred fifty-six".