428521350 has 24 divisors (see below), whose sum is σ = 1062733320. Its totient is φ = 114272320.

The previous prime is 428521333. The next prime is 428521361. The reversal of 428521350 is 53125824.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1428255 + ... + 1428554.

It is an arithmetic number, because the mean of its divisors is an integer number (44280555).

Almost surely, 2^428521350 is an apocalyptic number.

428521350 is an abundant number, since it is smaller than the sum of its proper divisors (634211970).

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

428521350 is a wasteful number, since it uses less digits than its factorization.

428521350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856824 (or 2856819 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 428521350 is about 20700.7572325265. The cubic root of 428521350 is about 753.9180737324.

The spelling of 428521350 in words is "four hundred twenty-eight million, five hundred twenty-one thousand, three hundred fifty".