1831808604 has 12 divisors (see below), whose sum is σ = 4274220104. Its totient is φ = 610602864.

The previous prime is 1831808603. The next prime is 1831808623. The reversal of 1831808604 is 4068081381.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) 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 (1831808603) 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, 76325347 + ... + 76325370.

Almost surely, 2^1831808604 is an apocalyptic number.

It is an amenable number.

1831808604 is an abundant number, since it is smaller than the sum of its proper divisors (2442411500).

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

1831808604 is a wasteful number, since it uses less digits than its factorization.

1831808604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152650724 (or 152650722 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 1831808604 is about 42799.6332227275. The cubic root of 1831808604 is about 1223.5640214321.

Adding to 1831808604 its reverse (4068081381), we get a palindrome (5899889985).

The spelling of 1831808604 in words is "one billion, eight hundred thirty-one million, eight hundred eight thousand, six hundred four".