1844400100 has 18 divisors (see below), whose sum is σ = 4002348434. Its totient is φ = 737760000.

The previous prime is 1844400097. The next prime is 1844400101. The reversal of 1844400100 is 10044481.

It can be written as a sum of positive squares in 3 ways, for example, as 46131264 + 1798268836 = 6792^2 + 42406^2 .

It is not an unprimeable number, because it can be changed into a prime (1844400101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9221901 + ... + 9222100.

Almost surely, 2^1844400100 is an apocalyptic number.

1844400100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1844400100 is an abundant number, since it is smaller than the sum of its proper divisors (2157948334).

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

1844400100 is a wasteful number, since it uses less digits than its factorization.

1844400100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18444015 (or 18444008 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1844400100 is about 42946.4794831893. The cubic root of 1844400100 is about 1226.3611359353.

Adding to 1844400100 its reverse (10044481), we get a palindrome (1854444581).

The spelling of 1844400100 in words is "one billion, eight hundred forty-four million, four hundred thousand, one hundred".