2831280045 has 32 divisors (see below), whose sum is σ = 5232574080. Its totient is φ = 1291991040.

The previous prime is 2831280043. The next prime is 2831280061. The reversal of 2831280045 is 5400821382.

It is not a de Polignac number, because 2831280045 - 2¹ = 2831280043 is a prime.

It is a super-2 number, since 2×2831280045² = 16032293386430404050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2831279988 and 2831280015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2831280043) 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 31 ways as a sum of consecutive naturals, for example, 501880 + ... + 507489.

It is an arithmetic number, because the mean of its divisors is an integer number (163517940).

Almost surely, 2^2831280045 is an apocalyptic number.

It is an amenable number.

2831280045 is a deficient number, since it is larger than the sum of its proper divisors (2401294035).

2831280045 is a wasteful number, since it uses less digits than its factorization.

2831280045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009405.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2831280045 is about 53209.7739611812. The cubic root of 2831280045 is about 1414.6888893035.

The spelling of 2831280045 in words is "two billion, eight hundred thirty-one million, two hundred eighty thousand, forty-five".