1428030533 has 4 divisors (see below), whose sum is σ = 1462860588. Its totient is φ = 1393200480.

The previous prime is 1428030529. The next prime is 1428030551. The reversal of 1428030533 is 3350308241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 354681889 + 1073348644 = 18833^2 + 32762^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428030533 - 2² = 1428030529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1428030496 and 1428030505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428030433) 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, 17414966 + ... + 17415047.

It is an arithmetic number, because the mean of its divisors is an integer number (365715147).

Almost surely, 2^1428030533 is an apocalyptic number.

It is an amenable number.

1428030533 is a deficient number, since it is larger than the sum of its proper divisors (34830055).

1428030533 is an equidigital number, since it uses as much as digits as its factorization.

1428030533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34830054.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1428030533 is about 37789.2912476537. The cubic root of 1428030533 is about 1126.1057199190.

Adding to 1428030533 its reverse (3350308241), we get a palindrome (4778338774).

The spelling of 1428030533 in words is "one billion, four hundred twenty-eight million, thirty thousand, five hundred thirty-three".