428973830 has 16 divisors (see below), whose sum is σ = 812792880. Its totient is φ = 162558432.

The previous prime is 428973827. The next prime is 428973889. The reversal of 428973830 is 38379824.

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, 1128689 + ... + 1129068.

It is an arithmetic number, because the mean of its divisors is an integer number (50799555).

Almost surely, 2^428973830 is an apocalyptic number.

428973830 is a deficient number, since it is larger than the sum of its proper divisors (383819050).

428973830 is a wasteful number, since it uses less digits than its factorization.

428973830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257783.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 428973830 is about 20711.6834178200. The cubic root of 428973830 is about 754.1833369465.

The spelling of 428973830 in words is "four hundred twenty-eight million, nine hundred seventy-three thousand, eight hundred thirty".