1428139714 has 4 divisors (see below), whose sum is σ = 2142209574. Its totient is φ = 714069856.

The previous prime is 1428139711. The next prime is 1428139733. The reversal of 1428139714 is 4179318241.

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

It can be written as a sum of positive squares in only one way, i.e., 1392558489 + 35581225 = 37317^2 + 5965^2 .

It is not an unprimeable number, because it can be changed into a prime (1428139711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357034927 + ... + 357034930.

Almost surely, 2^1428139714 is an apocalyptic number.

1428139714 is a deficient number, since it is larger than the sum of its proper divisors (714069860).

1428139714 is an equidigital number, since it uses as much as digits as its factorization.

1428139714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714069859.

The product of its digits is 48384, while the sum is 40.

The square root of 1428139714 is about 37790.7358224208. The cubic root of 1428139714 is about 1126.1344182352.

The spelling of 1428139714 in words is "one billion, four hundred twenty-eight million, one hundred thirty-nine thousand, seven hundred fourteen".