6428992 has 56 divisors (see below), whose sum is σ = 14264640. Its totient is φ = 2856960.

The previous prime is 6428987. The next prime is 6429019. The reversal of 6428992 is 2998246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20517 + ... + 20827.

Almost surely, 2^6428992 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 6428992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7132320).

6428992 is an abundant number, since it is smaller than the sum of its proper divisors (7835648).

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

6428992 is a wasteful number, since it uses less digits than its factorization.

6428992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 349 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 6428992 is about 2535.5457006333. The cubic root of 6428992 is about 185.9434830408.

The spelling of 6428992 in words is "six million, four hundred twenty-eight thousand, nine hundred ninety-two".