1849797772 has 6 divisors (see below), whose sum is σ = 3237146108. Its totient is φ = 924898884.

The previous prime is 1849797757. The next prime is 1849797773. The reversal of 1849797772 is 2777979481.

It is a self number, because there is not a number n which added to its sum of digits gives 1849797772.

It is not an unprimeable number, because it can be changed into a prime (1849797773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231224718 + ... + 231224725.

Almost surely, 2^1849797772 is an apocalyptic number.

It is an amenable number.

1849797772 is a deficient number, since it is larger than the sum of its proper divisors (1387348336).

1849797772 is a wasteful number, since it uses less digits than its factorization.

1849797772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462449447 (or 462449445 counting only the distinct ones).

The product of its digits is 12446784, while the sum is 61.

The square root of 1849797772 is about 43009.2754182165. The cubic root of 1849797772 is about 1227.5562938774.

The spelling of 1849797772 in words is "one billion, eight hundred forty-nine million, seven hundred ninety-seven thousand, seven hundred seventy-two".