18807036 has 24 divisors (see below), whose sum is σ = 46193280. Its totient is φ = 5938992.

The previous prime is 18807023. The next prime is 18807037. The reversal of 18807036 is 63070881.

It is a junction number, because it is equal to n+sod(n) for n = 18806988 and 18807006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18807037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41016 + ... + 41471.

It is an arithmetic number, because the mean of its divisors is an integer number (1924720).

Almost surely, 2^18807036 is an apocalyptic number.

It is an amenable number.

18807036 is an abundant number, since it is smaller than the sum of its proper divisors (27386244).

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

18807036 is a wasteful number, since it uses less digits than its factorization.

18807036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82513 (or 82511 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18807036 is about 4336.7079680329. The cubic root of 18807036 is about 265.9337464783.

The spelling of 18807036 in words is "eighteen million, eight hundred seven thousand, thirty-six".