1428742667 has 16 divisors (see below), whose sum is σ = 1577608704. Its totient is φ = 1283100000.

The previous prime is 1428742657. The next prime is 1428742687. The reversal of 1428742667 is 7662478241.

It is a cyclic number.

It is not a de Polignac number, because 1428742667 - 2⁶ = 1428742603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428742607) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 606542 + ... + 608892.

It is an arithmetic number, because the mean of its divisors is an integer number (98600544).

Almost surely, 2^1428742667 is an apocalyptic number.

1428742667 is a deficient number, since it is larger than the sum of its proper divisors (148866037).

1428742667 is a wasteful number, since it uses less digits than its factorization.

1428742667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010.

The product of its digits is 903168, while the sum is 47.

The square root of 1428742667 is about 37798.7125045285. The cubic root of 1428742667 is about 1126.2928785931.

It can be divided in two parts, 142874 and 2667, that added together give a palindrome (145541).

The spelling of 1428742667 in words is "one billion, four hundred twenty-eight million, seven hundred forty-two thousand, six hundred sixty-seven".