428809662 has 24 divisors (see below), whose sum is σ = 930969000. Its totient is φ = 142647120.

The previous prime is 428809657. The next prime is 428809673. The reversal of 428809662 is 266908824.

428809662 is a `hidden beast` number, since 428 + 80 + 96 + 62 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14889 + ... + 32852.

It is an arithmetic number, because the mean of its divisors is an integer number (38790375).

Almost surely, 2^428809662 is an apocalyptic number.

428809662 is an abundant number, since it is smaller than the sum of its proper divisors (502159338).

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

428809662 is a wasteful number, since it uses less digits than its factorization.

428809662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48248 (or 48245 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 428809662 is about 20707.7198648234. The cubic root of 428809662 is about 754.0871161835.

The spelling of 428809662 in words is "four hundred twenty-eight million, eight hundred nine thousand, six hundred sixty-two".