928040109 has 4 divisors (see below), whose sum is σ = 1237386816. Its totient is φ = 618693404.

The previous prime is 928040063. The next prime is 928040119. The reversal of 928040109 is 901040829.

928040109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 928040109 - 2⁹ = 928039597 is a prime.

It is a super-2 number, since 2×928040109² = 1722516887825463762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 928040109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928040119) 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, 154673349 + ... + 154673354.

It is an arithmetic number, because the mean of its divisors is an integer number (309346704).

Almost surely, 2^928040109 is an apocalyptic number.

It is an amenable number.

928040109 is a deficient number, since it is larger than the sum of its proper divisors (309346707).

928040109 is a wasteful number, since it uses less digits than its factorization.

928040109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309346706.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 928040109 is about 30463.7507375569. The cubic root of 928040109 is about 975.4138445662.

The spelling of 928040109 in words is "nine hundred twenty-eight million, forty thousand, one hundred nine".