6434738928 has 80 divisors (see below), whose sum is σ = 18486316800. Its totient is φ = 2143028160.

The previous prime is 6434738917. The next prime is 6434738953. The reversal of 6434738928 is 8298374346.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537973 + ... + 549803.

It is an arithmetic number, because the mean of its divisors is an integer number (231078960).

Almost surely, 2^6434738928 is an apocalyptic number.

It is an amenable number.

6434738928 is an abundant number, since it is smaller than the sum of its proper divisors (12051577872).

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

6434738928 is a wasteful number, since it uses less digits than its factorization.

6434738928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13107 (or 13095 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The square root of 6434738928 is about 80216.8244696834. The cubic root of 6434738928 is about 1859.9887200148.

The spelling of 6434738928 in words is "six billion, four hundred thirty-four million, seven hundred thirty-eight thousand, nine hundred twenty-eight".