1428733333 has 4 divisors (see below), whose sum is σ = 1428942240. Its totient is φ = 1428524428.

The previous prime is 1428733247. The next prime is 1428733387. The reversal of 1428733333 is 3333378241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3333378241 = 17 ⋅196081073.

It is a cyclic number.

It is not a de Polignac number, because 1428733333 - 2²¹ = 1426636181 is a prime.

It is a Duffinian number.

1428733333 is a modest number, since divided by 33333 gives 14287 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1428733292 and 1428733301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428733433) 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, 93835 + ... + 107992.

It is an arithmetic number, because the mean of its divisors is an integer number (357235560).

Almost surely, 2^1428733333 is an apocalyptic number.

It is an amenable number.

1428733333 is a deficient number, since it is larger than the sum of its proper divisors (208907).

1428733333 is an equidigital number, since it uses as much as digits as its factorization.

1428733333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208906.

The product of its digits is 108864, while the sum is 37.

The square root of 1428733333 is about 37798.5890345129. The cubic root of 1428733333 is about 1126.2904258909.

The spelling of 1428733333 in words is "one billion, four hundred twenty-eight million, seven hundred thirty-three thousand, three hundred thirty-three".