1428894359 has 4 divisors (see below), whose sum is σ = 1429030200. Its totient is φ = 1428758520.

The previous prime is 1428894289. The next prime is 1428894433. The reversal of 1428894359 is 9534988241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1428894359 is a prime.

It is a super-3 number, since 3×1428894359³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428894359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428894559) 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, 50684 + ... + 73665.

It is an arithmetic number, because the mean of its divisors is an integer number (357257550).

Almost surely, 2^1428894359 is an apocalyptic number.

1428894359 is a deficient number, since it is larger than the sum of its proper divisors (135841).

1428894359 is a wasteful number, since it uses less digits than its factorization.

1428894359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135840.

The product of its digits is 2488320, while the sum is 53.

The square root of 1428894359 is about 37800.7190275529. The cubic root of 1428894359 is about 1126.3327373158.

The spelling of 1428894359 in words is "one billion, four hundred twenty-eight million, eight hundred ninety-four thousand, three hundred fifty-nine".