1857048872 has 64 divisors (see below), whose sum is σ = 4124736000. Its totient is φ = 766918656.

The previous prime is 1857048871. The next prime is 1857048899. The reversal of 1857048872 is 2788407581.

It is a self number, because there is not a number n which added to its sum of digits gives 1857048872.

It is not an unprimeable number, because it can be changed into a prime (1857048871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248113 + ... + 1249599.

It is an arithmetic number, because the mean of its divisors is an integer number (64449000).

Almost surely, 2^1857048872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1857048872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2062368000).

1857048872 is an abundant number, since it is smaller than the sum of its proper divisors (2267687128).

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

1857048872 is a wasteful number, since it uses less digits than its factorization.

1857048872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 50.

The square root of 1857048872 is about 43093.4899027684. The cubic root of 1857048872 is about 1229.1581857522.

The spelling of 1857048872 in words is "one billion, eight hundred fifty-seven million, forty-eight thousand, eight hundred seventy-two".