428431084 has 6 divisors (see below), whose sum is σ = 749754404. Its totient is φ = 214215540.

The previous prime is 428431063. The next prime is 428431117. The reversal of 428431084 is 480134824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53553882 + ... + 53553889.

Almost surely, 2^428431084 is an apocalyptic number.

It is an amenable number.

428431084 is a deficient number, since it is larger than the sum of its proper divisors (321323320).

428431084 is a wasteful number, since it uses less digits than its factorization.

428431084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107107775 (or 107107773 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 428431084 is about 20698.5768592916. The cubic root of 428431084 is about 753.8651335870.

The spelling of 428431084 in words is "four hundred twenty-eight million, four hundred thirty-one thousand, eighty-four".