2928642331 has 4 divisors (see below), whose sum is σ = 2929457872. Its totient is φ = 2927826792.

The previous prime is 2928642329. The next prime is 2928642337. The reversal of 2928642331 is 1332468292.

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

It is a cyclic number.

It is not a de Polignac number, because 2928642331 - 2¹ = 2928642329 is a prime.

It is a super-2 number, since 2×2928642331² = 17153891805850227122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2928642337) 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 3 ways as a sum of consecutive naturals, for example, 402360 + ... + 409573.

It is an arithmetic number, because the mean of its divisors is an integer number (732364468).

Almost surely, 2^2928642331 is an apocalyptic number.

2928642331 is a deficient number, since it is larger than the sum of its proper divisors (815541).

2928642331 is an equidigital number, since it uses as much as digits as its factorization.

2928642331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815540.

The product of its digits is 124416, while the sum is 40.

The square root of 2928642331 is about 54116.9320176227. The cubic root of 2928642331 is about 1430.7226254647.

It can be divided in two parts, 29286 and 42331, that added together give a palindrome (71617).

The spelling of 2928642331 in words is "two billion, nine hundred twenty-eight million, six hundred forty-two thousand, three hundred thirty-one".