1428142259 has 8 divisors (see below), whose sum is σ = 1452971520. Its totient is φ = 1403333896.

The previous prime is 1428142253. The next prime is 1428142279. The reversal of 1428142259 is 9522418241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1428142259 - 2²⁸ = 1159706803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428142253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204662 + ... + 211524.

It is an arithmetic number, because the mean of its divisors is an integer number (181621440).

Almost surely, 2^1428142259 is an apocalyptic number.

1428142259 is a deficient number, since it is larger than the sum of its proper divisors (24829261).

1428142259 is an equidigital number, since it uses as much as digits as its factorization.

1428142259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10449.

The product of its digits is 46080, while the sum is 38.

The square root of 1428142259 is about 37790.7694946795. The cubic root of 1428142259 is about 1126.1350871731.

The spelling of 1428142259 in words is "one billion, four hundred twenty-eight million, one hundred forty-two thousand, two hundred fifty-nine".