428702430252 has 24 divisors (see below), whose sum is σ = 1002447665856. Its totient is φ = 142594810768.

The previous prime is 428702430229. The next prime is 428702430269. The reversal of 428702430252 is 252034207824.

It is a self number, because there is not a number n which added to its sum of digits gives 428702430252.

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, 38244078 + ... + 38255285.

It is an arithmetic number, because the mean of its divisors is an integer number (41768652744).

Almost surely, 2^428702430252 is an apocalyptic number.

It is an amenable number.

428702430252 is an abundant number, since it is smaller than the sum of its proper divisors (573745235604).

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

428702430252 is a wasteful number, since it uses less digits than its factorization.

428702430252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76499837 (or 76499835 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 39.

The spelling of 428702430252 in words is "four hundred twenty-eight billion, seven hundred two million, four hundred thirty thousand, two hundred fifty-two".