428308692 has 48 divisors (see below), whose sum is σ = 1150904832. Its totient is φ = 121436640.

The previous prime is 428308687. The next prime is 428308703. The reversal of 428308692 is 296803824.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8458 + ... + 30465.

It is an arithmetic number, because the mean of its divisors is an integer number (23977184).

Almost surely, 2^428308692 is an apocalyptic number.

428308692 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

428308692 is an abundant number, since it is smaller than the sum of its proper divisors (722596140).

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

428308692 is a wasteful number, since it uses less digits than its factorization.

428308692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39068 (or 39066 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 428308692 is about 20695.6201163435. The cubic root of 428308692 is about 753.7933399720.

The spelling of 428308692 in words is "four hundred twenty-eight million, three hundred eight thousand, six hundred ninety-two".