6434720 has 48 divisors (see below), whose sum is σ = 15367968. Its totient is φ = 2545920.

The previous prime is 6434713. The next prime is 6434759. The reversal of 6434720 is 274346.

6434720 = T₁₈ + T₁₉ + ... + T₃₃₇.

It is a happy number.

6434720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 6434720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20807 + ... + 21113.

It is an arithmetic number, because the mean of its divisors is an integer number (320166).

Almost surely, 2^6434720 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 6434720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7683984).

6434720 is an abundant number, since it is smaller than the sum of its proper divisors (8933248).

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

6434720 is a wasteful number, since it uses less digits than its factorization.

6434720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 6434720 is about 2536.6749890358. The cubic root of 6434720 is about 185.9986896273.

The spelling of 6434720 in words is "six million, four hundred thirty-four thousand, seven hundred twenty".