1623660036 has 12 divisors (see below), whose sum is σ = 3788540112. Its totient is φ = 541220008.

The previous prime is 1623660023. The next prime is 1623660041. The reversal of 1623660036 is 6300663261.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1623659979 and 1623660006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67652490 + ... + 67652513.

It is an arithmetic number, because the mean of its divisors is an integer number (315711676).

Almost surely, 2^1623660036 is an apocalyptic number.

It is an amenable number.

1623660036 is an abundant number, since it is smaller than the sum of its proper divisors (2164880076).

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

1623660036 is a wasteful number, since it uses less digits than its factorization.

1623660036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135305010 (or 135305008 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 1623660036 is about 40294.6651059418. The cubic root of 1623660036 is about 1175.3441058863.

The spelling of 1623660036 in words is "one billion, six hundred twenty-three million, six hundred sixty thousand, thirty-six".