1428984259 has 4 divisors (see below), whose sum is σ = 1443132720. Its totient is φ = 1414835800.

The previous prime is 1428984229. The next prime is 1428984301. The reversal of 1428984259 is 9524898241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9524898241 = 337 ⋅28263793.

It is a cyclic number.

It is not a de Polignac number, because 1428984259 - 2⁷ = 1428984131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428984209) 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, 7074079 + ... + 7074280.

It is an arithmetic number, because the mean of its divisors is an integer number (360783180).

Almost surely, 2^1428984259 is an apocalyptic number.

1428984259 is a deficient number, since it is larger than the sum of its proper divisors (14148461).

1428984259 is a wasteful number, since it uses less digits than its factorization.

1428984259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14148460.

The product of its digits is 1658880, while the sum is 52.

The square root of 1428984259 is about 37801.9081396694. The cubic root of 1428984259 is about 1126.3563581871.

The spelling of 1428984259 in words is "one billion, four hundred twenty-eight million, nine hundred eighty-four thousand, two hundred fifty-nine".