1836350640 has 120 divisors (see below), whose sum is σ = 6317595648. Its totient is φ = 477742080.

The previous prime is 1836350639. The next prime is 1836350653. The reversal of 1836350640 is 460536381.

1836350640 is a `hidden beast` number, since 1 + 8 + 3 + 6 + 3 + 5 + 0 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 1836350595 and 1836350604.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1584 + ... + 60623.

Almost surely, 2^1836350640 is an apocalyptic number.

1836350640 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 1836350640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3158797824).

1836350640 is an abundant number, since it is smaller than the sum of its proper divisors (4481245008).

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

1836350640 is a wasteful number, since it uses less digits than its factorization.

1836350640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62267 (or 62258 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1836350640 is about 42852.6619943266. The cubic root of 1836350640 is about 1224.5744772225.

The spelling of 1836350640 in words is "one billion, eight hundred thirty-six million, three hundred fifty thousand, six hundred forty".