1838199672 has 96 divisors (see below), whose sum is σ = 5114753280. Its totient is φ = 596185920.

The previous prime is 1838199659. The next prime is 1838199673. The reversal of 1838199672 is 2769918381.

1838199672 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1838199672³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838199673) 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, 398097 + ... + 402687.

It is an arithmetic number, because the mean of its divisors is an integer number (53278680).

Almost surely, 2^1838199672 is an apocalyptic number.

1838199672 is a gapful number since it is divisible by the number (12) 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 1838199672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2557376640).

1838199672 is an abundant number, since it is smaller than the sum of its proper divisors (3276553608).

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

1838199672 is a wasteful number, since it uses less digits than its factorization.

1838199672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753 (or 4746 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 1838199672 is about 42874.2308619058. The cubic root of 1838199672 is about 1224.9853497068.

The spelling of 1838199672 in words is "one billion, eight hundred thirty-eight million, one hundred ninety-nine thousand, six hundred seventy-two".