1849223178 has 96 divisors (see below), whose sum is σ = 4726874880. Its totient is φ = 516142080.

The previous prime is 1849223177. The next prime is 1849223179. The reversal of 1849223178 is 8713229481.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1849223177) and next prime (1849223179).

It is not an unprimeable number, because it can be changed into a prime (1849223177) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152358 + ... + 164046.

It is an arithmetic number, because the mean of its divisors is an integer number (49238280).

Almost surely, 2^1849223178 is an apocalyptic number.

1849223178 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1849223178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2363437440).

1849223178 is an abundant number, since it is smaller than the sum of its proper divisors (2877651702).

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

1849223178 is a wasteful number, since it uses less digits than its factorization.

1849223178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11772 (or 11769 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 1849223178 is about 43002.5950147198. The cubic root of 1849223178 is about 1227.4291773646.

The spelling of 1849223178 in words is "one billion, eight hundred forty-nine million, two hundred twenty-three thousand, one hundred seventy-eight".