6430740 has 48 divisors (see below), whose sum is σ = 18957120. Its totient is φ = 1624320.

The previous prime is 6430687. The next prime is 6430747. The reversal of 6430740 is 470346.

6430740 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 6430740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6430747) 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, 1681 + ... + 3960.

It is an arithmetic number, because the mean of its divisors is an integer number (394940).

Almost surely, 2^6430740 is an apocalyptic number.

6430740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6430740 is an abundant number, since it is smaller than the sum of its proper divisors (12526380).

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

6430740 is a wasteful number, since it uses less digits than its factorization.

6430740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5672 (or 5670 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 6430740 is about 2535.8903761795. The cubic root of 6430740 is about 185.9603337775.

The spelling of 6430740 in words is "six million, four hundred thirty thousand, seven hundred forty".