1841642136 has 64 divisors (see below), whose sum is σ = 5152560000. Its totient is φ = 609454368.

The previous prime is 1841642093. The next prime is 1841642137. The reversal of 1841642136 is 6312461481.

1841642136 is a `hidden beast` number, since 1 + 8 + 4 + 1 + 642 + 1 + 3 + 6 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1841642136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1841642137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646 + ... + 60693.

It is an arithmetic number, because the mean of its divisors is an integer number (80508750).

Almost surely, 2^1841642136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1841642136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2576280000).

1841642136 is an abundant number, since it is smaller than the sum of its proper divisors (3310917864).

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

1841642136 is a wasteful number, since it uses less digits than its factorization.

1841642136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61493 (or 61483 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1841642136 is about 42914.3581566822. The cubic root of 1841642136 is about 1225.7495645239.

The spelling of 1841642136 in words is "one billion, eight hundred forty-one million, six hundred forty-two thousand, one hundred thirty-six".