1533428872 has 8 divisors (see below), whose sum is σ = 2875179150. Its totient is φ = 766714432.

The previous prime is 1533428867. The next prime is 1533428873. The reversal of 1533428872 is 2788243351.

It can be written as a sum of positive squares in only one way, i.e., 1525214916 + 8213956 = 39054^2 + 2866^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1533428873) 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 as a sum of consecutive naturals, namely, 95839297 + ... + 95839312.

Almost surely, 2^1533428872 is an apocalyptic number.

It is an amenable number.

1533428872 is a deficient number, since it is larger than the sum of its proper divisors (1341750278).

1533428872 is a wasteful number, since it uses less digits than its factorization.

1533428872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191678615 (or 191678611 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 1533428872 is about 39159.0203146095. The cubic root of 1533428872 is about 1153.1555105428.

The spelling of 1533428872 in words is "one billion, five hundred thirty-three million, four hundred twenty-eight thousand, eight hundred seventy-two".