1428774333 has 16 divisors (see below), whose sum is σ = 2305249920. Its totient is φ = 768416256.

The previous prime is 1428774313. The next prime is 1428774337. The reversal of 1428774333 is 3334778241.

It is a happy number.

It is not a de Polignac number, because 1428774333 - 2²⁰ = 1427725757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428774337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2000728 + ... + 2001441.

It is an arithmetic number, because the mean of its divisors is an integer number (144078120).

Almost surely, 2^1428774333 is an apocalyptic number.

It is an amenable number.

1428774333 is a deficient number, since it is larger than the sum of its proper divisors (876475587).

1428774333 is a wasteful number, since it uses less digits than its factorization.

1428774333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002196.

The product of its digits is 338688, while the sum is 42.

The square root of 1428774333 is about 37799.1313789087. The cubic root of 1428774333 is about 1126.3011994119.

The spelling of 1428774333 in words is "one billion, four hundred twenty-eight million, seven hundred seventy-four thousand, three hundred thirty-three".