1428757311 has 16 divisors (see below), whose sum is σ = 1947875328. Its totient is φ = 931260000.

The previous prime is 1428757303. The next prime is 1428757313. The reversal of 1428757311 is 1137578241.

It is a happy number.

It is not a de Polignac number, because 1428757311 - 2³ = 1428757303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1428757311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428757313) 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 in 15 ways as a sum of consecutive naturals, for example, 7186 + ... + 53936.

It is an arithmetic number, because the mean of its divisors is an integer number (121742208).

Almost surely, 2^1428757311 is an apocalyptic number.

1428757311 is a deficient number, since it is larger than the sum of its proper divisors (519118017).

1428757311 is a wasteful number, since it uses less digits than its factorization.

1428757311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46982.

The product of its digits is 47040, while the sum is 39.

The square root of 1428757311 is about 37798.9062143338. The cubic root of 1428757311 is about 1126.2967265864.

The spelling of 1428757311 in words is "one billion, four hundred twenty-eight million, seven hundred fifty-seven thousand, three hundred eleven".