6428630 has 16 divisors (see below), whose sum is σ = 12461904. Its totient is φ = 2373600.

The previous prime is 6428627. The next prime is 6428647. The reversal of 6428630 is 368246.

It is a junction number, because it is equal to n+sod(n) for n = 6428593 and 6428602.

It is a congruent number.

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, 24596 + ... + 24855.

It is an arithmetic number, because the mean of its divisors is an integer number (778869).

Almost surely, 2^6428630 is an apocalyptic number.

6428630 is a deficient number, since it is larger than the sum of its proper divisors (6033274).

6428630 is a wasteful number, since it uses less digits than its factorization.

6428630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49471.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 6428630 is about 2535.4743146007. The cubic root of 6428630 is about 185.9399929755.

The spelling of 6428630 in words is "six million, four hundred twenty-eight thousand, six hundred thirty".