428823708 has 48 divisors (see below), whose sum is σ = 1061190144. Its totient is φ = 134311680.

The previous prime is 428823697. The next prime is 428823709. The reversal of 428823708 is 807328824.

It is a self number, because there is not a number n which added to its sum of digits gives 428823708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428823709) 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, 159213 + ... + 161883.

It is an arithmetic number, because the mean of its divisors is an integer number (22108128).

Almost surely, 2^428823708 is an apocalyptic number.

It is an amenable number.

428823708 is an abundant number, since it is smaller than the sum of its proper divisors (632366436).

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

428823708 is a wasteful number, since it uses less digits than its factorization.

428823708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482 (or 3480 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 428823708 is about 20708.0590109262. The cubic root of 428823708 is about 754.0953496671.

The spelling of 428823708 in words is "four hundred twenty-eight million, eight hundred twenty-three thousand, seven hundred eight".