428213682 has 32 divisors (see below), whose sum is σ = 1024786560. Its totient is φ = 131757840.

The previous prime is 428213627. The next prime is 428213689. The reversal of 428213682 is 286312824.

It is not an unprimeable number, because it can be changed into a prime (428213689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304294 + ... + 305697.

It is an arithmetic number, because the mean of its divisors is an integer number (32024580).

Almost surely, 2^428213682 is an apocalyptic number.

428213682 is an abundant number, since it is smaller than the sum of its proper divisors (596572878).

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

428213682 is a wasteful number, since it uses less digits than its factorization.

428213682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610015 (or 610009 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 428213682 is about 20693.3245758143. The cubic root of 428213682 is about 753.7375988653.

The spelling of 428213682 in words is "four hundred twenty-eight million, two hundred thirteen thousand, six hundred eighty-two".