1836493568 has 144 divisors (see below), whose sum is σ = 4659142656. Its totient is φ = 702812160.

The previous prime is 1836493567. The next prime is 1836493573. The reversal of 1836493568 is 8653946381.

It is not an unprimeable number, because it can be changed into a prime (1836493567) 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, 720905 + ... + 723447.

Almost surely, 2^1836493568 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 1836493568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2329571328).

1836493568 is an abundant number, since it is smaller than the sum of its proper divisors (2822649088).

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

1836493568 is a wasteful number, since it uses less digits than its factorization.

1836493568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610 (or 2596 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 1836493568 is about 42854.3296295719. The cubic root of 1836493568 is about 1224.6062470157.

The spelling of 1836493568 in words is "one billion, eight hundred thirty-six million, four hundred ninety-three thousand, five hundred sixty-eight".