2057273409 has 8 divisors (see below), whose sum is σ = 2743264192. Its totient is φ = 1371399120.

The previous prime is 2057273401. The next prime is 2057273437. The reversal of 2057273409 is 9043727502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2057273409 - 2³ = 2057273401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057273401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28212 + ... + 70074.

It is an arithmetic number, because the mean of its divisors is an integer number (342908024).

Almost surely, 2^2057273409 is an apocalyptic number.

It is an amenable number.

2057273409 is a deficient number, since it is larger than the sum of its proper divisors (685990783).

2057273409 is a wasteful number, since it uses less digits than its factorization.

2057273409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58247.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 2057273409 is about 45357.1759372208. The cubic root of 2057273409 is about 1271.8347030914.

The spelling of 2057273409 in words is "two billion, fifty-seven million, two hundred seventy-three thousand, four hundred nine".