1805609796 has 12 divisors (see below), whose sum is σ = 4213089552. Its totient is φ = 601869928.

The previous prime is 1805609791. The next prime is 1805609801. The reversal of 1805609796 is 6979065081.

It is an interprime number because it is at equal distance from previous prime (1805609791) and next prime (1805609801).

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

It is a super-2 number, since 2×1805609796² = 6520453470822323232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1805609791) 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, 75233730 + ... + 75233753.

It is an arithmetic number, because the mean of its divisors is an integer number (351090796).

Almost surely, 2^1805609796 is an apocalyptic number.

It is an amenable number.

1805609796 is an abundant number, since it is smaller than the sum of its proper divisors (2407479756).

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

1805609796 is a wasteful number, since it uses less digits than its factorization.

1805609796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150467490 (or 150467488 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 1805609796 is about 42492.4675207265. The cubic root of 1805609796 is about 1217.7027890466.

The spelling of 1805609796 in words is "one billion, eight hundred five million, six hundred nine thousand, seven hundred ninety-six".