1972429533 has 6 divisors (see below), whose sum is σ = 2849064894. Its totient is φ = 1314953016.

The previous prime is 1972429457. The next prime is 1972429597. The reversal of 1972429533 is 3359242791.

1972429533 is a `hidden beast` number, since 1 + 9 + 72 + 42 + 9 + 533 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1725405444 + 247024089 = 41538^2 + 15717^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1972429533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972429133) 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 5 ways as a sum of consecutive naturals, for example, 109579410 + ... + 109579427.

It is an arithmetic number, because the mean of its divisors is an integer number (474844149).

Almost surely, 2^1972429533 is an apocalyptic number.

It is an amenable number.

1972429533 is a deficient number, since it is larger than the sum of its proper divisors (876635361).

1972429533 is a wasteful number, since it uses less digits than its factorization.

1972429533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219158843 (or 219158840 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 1972429533 is about 44412.0426573694. The cubic root of 1972429533 is about 1254.1048060721.

The spelling of 1972429533 in words is "one billion, nine hundred seventy-two million, four hundred twenty-nine thousand, five hundred thirty-three".