1836140404 has 24 divisors (see below), whose sum is σ = 3673974528. Its totient is φ = 786554400.

The previous prime is 1836140333. The next prime is 1836140407. The reversal of 1836140404 is 4040416381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1836140407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51882 + ... + 79774.

It is an arithmetic number, because the mean of its divisors is an integer number (153082272).

Almost surely, 2^1836140404 is an apocalyptic number.

1836140404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1836140404 is an abundant number, since it is smaller than the sum of its proper divisors (1837834124).

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

1836140404 is a wasteful number, since it uses less digits than its factorization.

1836140404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255 (or 30253 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1836140404 is about 42850.2089143099. The cubic root of 1836140404 is about 1224.5277433255.

Adding to 1836140404 its reverse (4040416381), we get a palindrome (5876556785).

The spelling of 1836140404 in words is "one billion, eight hundred thirty-six million, one hundred forty thousand, four hundred four".