1428794516 has 12 divisors (see below), whose sum is σ = 2567968788. Its totient is φ = 695089152.

The previous prime is 1428794513. The next prime is 1428794537. The reversal of 1428794516 is 6154978241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1142169616 + 286624900 = 33796^2 + 16930^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428794513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4826861 + ... + 4827156.

It is an arithmetic number, because the mean of its divisors is an integer number (213997399).

Almost surely, 2^1428794516 is an apocalyptic number.

It is an amenable number.

1428794516 is a deficient number, since it is larger than the sum of its proper divisors (1139174272).

1428794516 is a wasteful number, since it uses less digits than its factorization.

1428794516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9654058 (or 9654056 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 1428794516 is about 37799.3983550003. The cubic root of 1428794516 is about 1126.3065027990.

The spelling of 1428794516 in words is "one billion, four hundred twenty-eight million, seven hundred ninety-four thousand, five hundred sixteen".