2049309171 has 24 divisors (see below), whose sum is σ = 3643217760. Its totient is φ = 1080953856.

The previous prime is 2049309169. The next prime is 2049309193. The reversal of 2049309171 is 1719039402.

It is not a de Polignac number, because 2049309171 - 2¹ = 2049309169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2049309151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1250286 + ... + 1251923.

It is an arithmetic number, because the mean of its divisors is an integer number (151800740).

Almost surely, 2^2049309171 is an apocalyptic number.

2049309171 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2049309171 is a deficient number, since it is larger than the sum of its proper divisors (1593908589).

2049309171 is a wasteful number, since it uses less digits than its factorization.

2049309171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502235 (or 2502232 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 2049309171 is about 45269.2961177883. The cubic root of 2049309171 is about 1270.1913802150.

The spelling of 2049309171 in words is "two billion, forty-nine million, three hundred nine thousand, one hundred seventy-one".