428045964 has 24 divisors (see below), whose sum is σ = 999584880. Its totient is φ = 142566144.

The previous prime is 428045963. The next prime is 428045971. The reversal of 428045964 is 469540824.

It is not an unprimeable number, because it can be changed into a prime (428045963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632 + ... + 29304.

It is an arithmetic number, because the mean of its divisors is an integer number (41649370).

Almost surely, 2^428045964 is an apocalyptic number.

It is an amenable number.

428045964 is an abundant number, since it is smaller than the sum of its proper divisors (571538916).

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

428045964 is a wasteful number, since it uses less digits than its factorization.

428045964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28969 (or 28967 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 428045964 is about 20689.2717126534. The cubic root of 428045964 is about 753.6391808123.

The spelling of 428045964 in words is "four hundred twenty-eight million, forty-five thousand, nine hundred sixty-four".