428975019 has 12 divisors (see below), whose sum is σ = 675960792. Its totient is φ = 259984800.

The previous prime is 428975011. The next prime is 428975021. The reversal of 428975019 is 910579824.

It is not a de Polignac number, because 428975019 - 2³ = 428975011 is a prime.

It is a super-2 number, since 2×428975019² = 368039133852100722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428975011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2166442 + ... + 2166639.

It is an arithmetic number, because the mean of its divisors is an integer number (56330066).

Almost surely, 2^428975019 is an apocalyptic number.

428975019 is a deficient number, since it is larger than the sum of its proper divisors (246985773).

428975019 is a wasteful number, since it uses less digits than its factorization.

428975019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333098 (or 4333095 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 428975019 is about 20711.7121214061. The cubic root of 428975019 is about 754.1840337436.

The spelling of 428975019 in words is "four hundred twenty-eight million, nine hundred seventy-five thousand, nineteen".