6430940 has 12 divisors (see below), whose sum is σ = 13505016. Its totient is φ = 2572368.

The previous prime is 6430937. The next prime is 6430969. The reversal of 6430940 is 490346.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160754 + ... + 160793.

It is an arithmetic number, because the mean of its divisors is an integer number (1125418).

Almost surely, 2^6430940 is an apocalyptic number.

It is an amenable number.

6430940 is an abundant number, since it is smaller than the sum of its proper divisors (7074076).

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

6430940 is a wasteful number, since it uses less digits than its factorization.

6430940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321556 (or 321554 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 6430940 is about 2535.9298097542. The cubic root of 6430940 is about 185.9622615847.

The spelling of 6430940 in words is "six million, four hundred thirty thousand, nine hundred forty".