2104405636 has 48 divisors (see below), whose sum is σ = 3918039552. Its totient is φ = 987638400.

The previous prime is 2104405607. The next prime is 2104405657. The reversal of 2104405636 is 6365044012.

It is a junction number, because it is equal to n+sod(n) for n = 2104405598 and 2104405607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491746 + ... + 496006.

It is an arithmetic number, because the mean of its divisors is an integer number (81625824).

Almost surely, 2^2104405636 is an apocalyptic number.

It is an amenable number.

2104405636 is a deficient number, since it is larger than the sum of its proper divisors (1813633916).

2104405636 is a wasteful number, since it uses less digits than its factorization.

2104405636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420 (or 4418 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2104405636 is about 45873.8011941457. The cubic root of 2104405636 is about 1281.4740578342.

Adding to 2104405636 its reverse (6365044012), we get a palindrome (8469449648).

The spelling of 2104405636 in words is "two billion, one hundred four million, four hundred five thousand, six hundred thirty-six".