1849797774 has 48 divisors (see below), whose sum is σ = 4437538560. Its totient is φ = 552174480.

The previous prime is 1849797773. The next prime is 1849797787. The reversal of 1849797774 is 4777979481.

1849797774 is a `hidden beast` number, since 1 + 8 + 497 + 9 + 77 + 74 = 666.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 56454 + ... + 82985.

It is an arithmetic number, because the mean of its divisors is an integer number (92448720).

Almost surely, 2^1849797774 is an apocalyptic number.

1849797774 is an abundant number, since it is smaller than the sum of its proper divisors (2587740786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1849797774 is a wasteful number, since it uses less digits than its factorization.

1849797774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139525 (or 139522 counting only the distinct ones).

The product of its digits is 24893568, while the sum is 63.

The square root of 1849797774 is about 43009.2754414673. The cubic root of 1849797774 is about 1227.5562943198.

The spelling of 1849797774 in words is "one billion, eight hundred forty-nine million, seven hundred ninety-seven thousand, seven hundred seventy-four".