6459040 has 96 divisors (see below), whose sum is σ = 17902080. Its totient is φ = 2156544.

The previous prime is 6459029. The next prime is 6459049. The reversal of 6459040 is 409546.

6459040 = T₁₂₅ + T₁₂₆ + ... + T₃₄₃.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (6459049) 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, 81721 + ... + 81799.

It is an arithmetic number, because the mean of its divisors is an integer number (186480).

Almost surely, 2^6459040 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 6459040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8951040).

6459040 is an abundant number, since it is smaller than the sum of its proper divisors (11443040).

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

6459040 is a wasteful number, since it uses less digits than its factorization.

6459040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6459040 is about 2541.4641449369. The cubic root of 6459040 is about 186.2327221484.

The spelling of 6459040 in words is "six million, four hundred fifty-nine thousand, forty".