1844542040 has 256 divisors, whose sum is σ = 5094835200. Its totient is φ = 593049600.

The previous prime is 1844542039. The next prime is 1844542043. The reversal of 1844542040 is 402454481.

It is a junction number, because it is equal to n+sod(n) for n = 1844541988 and 1844542006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1844542043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10190750 + ... + 10190930.

It is an arithmetic number, because the mean of its divisors is an integer number (19901700).

Almost surely, 2^1844542040 is an apocalyptic number.

1844542040 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 1844542040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2547417600).

1844542040 is an abundant number, since it is smaller than the sum of its proper divisors (3250293160).

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

1844542040 is a wasteful number, since it uses less digits than its factorization.

1844542040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

The square root of 1844542040 is about 42948.1319733466. The cubic root of 1844542040 is about 1226.3925942641.

The spelling of 1844542040 in words is "one billion, eight hundred forty-four million, five hundred forty-two thousand, forty".