1428794428 has 12 divisors (see below), whose sum is σ = 2501126992. Its totient is φ = 714186720.

The previous prime is 1428794413. The next prime is 1428794441. The reversal of 1428794428 is 8244978241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36825 + ... + 64912.

Almost surely, 2^1428794428 is an apocalyptic number.

It is an amenable number.

1428794428 is a deficient number, since it is larger than the sum of its proper divisors (1072332564).

1428794428 is a wasteful number, since it uses less digits than its factorization.

1428794428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105252 (or 105250 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 1428794428 is about 37799.3971909606. The cubic root of 1428794428 is about 1126.3064796758.

The spelling of 1428794428 in words is "one billion, four hundred twenty-eight million, seven hundred ninety-four thousand, four hundred twenty-eight".