9932905428 has 24 divisors (see below), whose sum is σ = 23182256832. Its totient is φ = 3310185984.

The previous prime is 9932905427. The next prime is 9932905447. The reversal of 9932905428 is 8245092399.

It is a happy number.

It is a super-2 number, since 2×9932905428² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9932905427) 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 in 7 ways as a sum of consecutive naturals, for example, 43725 + ... + 147572.

It is an arithmetic number, because the mean of its divisors is an integer number (965927368).

Almost surely, 2^9932905428 is an apocalyptic number.

It is an amenable number.

9932905428 is an abundant number, since it is smaller than the sum of its proper divisors (13249351404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9932905428 is a wasteful number, since it uses less digits than its factorization.

9932905428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195631 (or 195629 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 9932905428 is about 99663.9625341076. The cubic root of 9932905428 is about 2149.6055110368.

The spelling of 9932905428 in words is "nine billion, nine hundred thirty-two million, nine hundred five thousand, four hundred twenty-eight".