1836130992 has 80 divisors (see below), whose sum is σ = 4932636672. Its totient is φ = 587911680.

The previous prime is 1836130981. The next prime is 1836130997. The reversal of 1836130992 is 2990316381.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1836130997) 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, 199353 + ... + 208359.

Almost surely, 2^1836130992 is an apocalyptic number.

1836130992 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 1836130992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2466318336).

1836130992 is an abundant number, since it is smaller than the sum of its proper divisors (3096505680).

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

1836130992 is a wasteful number, since it uses less digits than its factorization.

1836130992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186 (or 9180 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1836130992 is about 42850.0990897337. The cubic root of 1836130992 is about 1224.5256510246.

The spelling of 1836130992 in words is "one billion, eight hundred thirty-six million, one hundred thirty thousand, nine hundred ninety-two".