1836994032 has 160 divisors (see below), whose sum is σ = 5475840000. Its totient is φ = 589006080.

The previous prime is 1836994021. The next prime is 1836994039. The reversal of 1836994032 is 2304996381.

It is a happy number.

1836994032 is a `hidden beast` number, since 183 + 69 + 9 + 403 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1836994039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3066469 + ... + 3067067.

It is an arithmetic number, because the mean of its divisors is an integer number (34224000).

Almost surely, 2^1836994032 is an apocalyptic number.

1836994032 is a gapful number since it is divisible by the number (12) 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 1836994032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2737920000).

1836994032 is an abundant number, since it is smaller than the sum of its proper divisors (3638845968).

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

1836994032 is a wasteful number, since it uses less digits than its factorization.

1836994032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 1836994032 is about 42860.1683617785. The cubic root of 1836994032 is about 1224.7174763150.

The spelling of 1836994032 in words is "one billion, eight hundred thirty-six million, nine hundred ninety-four thousand, thirty-two".