6435040 has 48 divisors (see below), whose sum is σ = 15628032. Its totient is φ = 2502144.

The previous prime is 6435031. The next prime is 6435043. The reversal of 6435040 is 405346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6435043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5377 + ... + 6463.

It is an arithmetic number, because the mean of its divisors is an integer number (325584).

Almost surely, 2^6435040 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 6435040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7814016).

6435040 is an abundant number, since it is smaller than the sum of its proper divisors (9192992).

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

6435040 is a wasteful number, since it uses less digits than its factorization.

6435040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 6435040 is about 2536.7380629462. The cubic root of 6435040 is about 186.0017728277.

The spelling of 6435040 in words is "six million, four hundred thirty-five thousand, forty".