428572804 has 27 divisors (see below), whose sum is σ = 825259813. Its totient is φ = 194598800.

The previous prime is 428572801. The next prime is 428572811. The reversal of 428572804 is 408275824.

The square root of 428572804 is 20702.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 265755204 + 162817600 = 16302^2 + 12760^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428572801) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 454974 + ... + 455914.

Almost surely, 2^428572804 is an apocalyptic number.

428572804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

428572804 is the 20702-nd square number.

It is an amenable number.

428572804 is a deficient number, since it is larger than the sum of its proper divisors (396687009).

428572804 is an equidigital number, since it uses as much as digits as its factorization.

428572804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The cubic root of 428572804 is about 753.9482476845.

The spelling of 428572804 in words is "four hundred twenty-eight million, five hundred seventy-two thousand, eight hundred four".