1820868832 has 24 divisors (see below), whose sum is σ = 3586457952. Its totient is φ = 910022400.

The previous prime is 1820868817. The next prime is 1820868839. The reversal of 1820868832 is 2388680281.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820868839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66457 + ... + 89767.

It is an arithmetic number, because the mean of its divisors is an integer number (149435748).

Almost surely, 2^1820868832 is an apocalyptic number.

It is an amenable number.

1820868832 is a deficient number, since it is larger than the sum of its proper divisors (1765589120).

1820868832 is a wasteful number, since it uses less digits than its factorization.

1820868832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25762 (or 25754 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 1820868832 is about 42671.6396685199. The cubic root of 1820868832 is about 1221.1234013147.

The spelling of 1820868832 in words is "one billion, eight hundred twenty million, eight hundred sixty-eight thousand, eight hundred thirty-two".