1838723112 has 32 divisors (see below), whose sum is σ = 5107564800. Its totient is φ = 612907632.

The previous prime is 1838723101. The next prime is 1838723113. The reversal of 1838723112 is 2113278381.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1838723113) 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 7 ways as a sum of consecutive naturals, for example, 4256088 + ... + 4256519.

It is an arithmetic number, because the mean of its divisors is an integer number (159611400).

Almost surely, 2^1838723112 is an apocalyptic number.

1838723112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1838723112 is an abundant number, since it is smaller than the sum of its proper divisors (3268841688).

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

1838723112 is a wasteful number, since it uses less digits than its factorization.

1838723112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512622 (or 8512612 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 1838723112 is about 42880.3347934691. The cubic root of 1838723112 is about 1225.1016130065.

The spelling of 1838723112 in words is "one billion, eight hundred thirty-eight million, seven hundred twenty-three thousand, one hundred twelve".