18860036 has 12 divisors (see below), whose sum is σ = 35544012. Its totient is φ = 8704608.

The previous prime is 18860029. The next prime is 18860057. The reversal of 18860036 is 63006881.

It can be written as a sum of positive squares in 2 ways, for example, as 12559936 + 6300100 = 3544^2 + 2510^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18859984 and 18860011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181295 + ... + 181398.

It is an arithmetic number, because the mean of its divisors is an integer number (2962001).

Almost surely, 2^18860036 is an apocalyptic number.

It is an amenable number.

18860036 is a deficient number, since it is larger than the sum of its proper divisors (16683976).

18860036 is a wasteful number, since it uses less digits than its factorization.

18860036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362710 (or 362708 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 18860036 is about 4342.8142949014. The cubic root of 18860036 is about 266.1833209706.

The spelling of 18860036 in words is "eighteen million, eight hundred sixty thousand, thirty-six".