1428386436 has 27 divisors (see below), whose sum is σ = 3611216791. Its totient is φ = 476053224.

The previous prime is 1428386423. The next prime is 1428386459. The reversal of 1428386436 is 6346838241.

The square root of 1428386436 is 37794.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1428386391 and 1428386400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 223615 + ... + 229913.

Almost surely, 2^1428386436 is an apocalyptic number.

1428386436 is the 37794-th square number.

It is an amenable number.

1428386436 is an abundant number, since it is smaller than the sum of its proper divisors (2182830355).

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

1428386436 is an frugal number, since it uses more digits than its factorization.

1428386436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12608 (or 6304 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The cubic root of 1428386436 is about 1126.1992639303.

The spelling of 1428386436 in words is "one billion, four hundred twenty-eight million, three hundred eighty-six thousand, four hundred thirty-six".