1848949920 has 288 divisors, whose sum is σ = 6827079168. Its totient is φ = 453894144.

The previous prime is 1848949919. The next prime is 1848949931. The reversal of 1848949920 is 299498481.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1149757 + ... + 1151363.

It is an arithmetic number, because the mean of its divisors is an integer number (23705136).

Almost surely, 2^1848949920 is an apocalyptic number.

1848949920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1848949920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3413539584).

1848949920 is an abundant number, since it is smaller than the sum of its proper divisors (4978129248).

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

1848949920 is a wasteful number, since it uses less digits than its factorization.

1848949920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 1848949920 is about 42999.4176704755. The cubic root of 1848949920 is about 1227.3687156947.

The spelling of 1848949920 in words is "one billion, eight hundred forty-eight million, nine hundred forty-nine thousand, nine hundred twenty".