1841012840 has 64 divisors (see below), whose sum is σ = 4205779200. Its totient is φ = 725167872.

The previous prime is 1841012827. The next prime is 1841012857. The reversal of 1841012840 is 482101481.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2157854 + ... + 2158706.

It is an arithmetic number, because the mean of its divisors is an integer number (65715300).

Almost surely, 2^1841012840 is an apocalyptic number.

1841012840 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 1841012840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2102889600).

1841012840 is an abundant number, since it is smaller than the sum of its proper divisors (2364766360).

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

1841012840 is a wasteful number, since it uses less digits than its factorization.

1841012840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 1841012840 is about 42907.0255319569. The cubic root of 1841012840 is about 1225.6099342164.

The spelling of 1841012840 in words is "one billion, eight hundred forty-one million, twelve thousand, eight hundred forty".