2272029857 has 4 divisors (see below), whose sum is σ = 2272217220. Its totient is φ = 2271842496.

The previous prime is 2272029827. The next prime is 2272029863. The reversal of 2272029857 is 7589202722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7589202722 = 2 ⋅3794601361.

It can be written as a sum of positive squares in 2 ways, for example, as 1199860321 + 1072169536 = 34639^2 + 32744^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272029857 - 2⁸ = 2272029601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2272029817) 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, 74132 + ... + 100197.

It is an arithmetic number, because the mean of its divisors is an integer number (568054305).

Almost surely, 2^2272029857 is an apocalyptic number.

It is an amenable number.

2272029857 is a deficient number, since it is larger than the sum of its proper divisors (187363).

2272029857 is a wasteful number, since it uses less digits than its factorization.

2272029857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187362.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 2272029857 is about 47665.8143431957. The cubic root of 2272029857 is about 1314.6334488957.

The spelling of 2272029857 in words is "two billion, two hundred seventy-two million, twenty-nine thousand, eight hundred fifty-seven".