428852015 has 8 divisors (see below), whose sum is σ = 528531360. Its totient is φ = 333808992.

The previous prime is 428852009. The next prime is 428852033. The reversal of 428852015 is 510258824.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428852015 - 2¹⁸ = 428589871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158875 + ... + 1159244.

It is an arithmetic number, because the mean of its divisors is an integer number (66066420).

Almost surely, 2^428852015 is an apocalyptic number.

428852015 is a deficient number, since it is larger than the sum of its proper divisors (99679345).

428852015 is a wasteful number, since it uses less digits than its factorization.

428852015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318161.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 428852015 is about 20708.7424775142. The cubic root of 428852015 is about 754.1119421168. Note that the first 3 decimals are identical.

The spelling of 428852015 in words is "four hundred twenty-eight million, eight hundred fifty-two thousand, fifteen".