428665004 has 48 divisors (see below), whose sum is σ = 826398720. Its totient is φ = 193818240.

The previous prime is 428664989. The next prime is 428665033. The reversal of 428665004 is 400566824.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144989 + ... + 147915.

It is an arithmetic number, because the mean of its divisors is an integer number (17216640).

Almost surely, 2^428665004 is an apocalyptic number.

It is an amenable number.

428665004 is a deficient number, since it is larger than the sum of its proper divisors (397733716).

428665004 is a wasteful number, since it uses less digits than its factorization.

428665004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038 (or 3036 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 428665004 is about 20704.2267182332. The cubic root of 428665004 is about 754.0023101009.

The spelling of 428665004 in words is "four hundred twenty-eight million, six hundred sixty-five thousand, four".