18801036 has 18 divisors (see below), whose sum is σ = 47524932. Its totient is φ = 6267000.

The previous prime is 18801011. The next prime is 18801037. The reversal of 18801036 is 63010881.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18801037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 261090 + ... + 261161.

It is an arithmetic number, because the mean of its divisors is an integer number (2640274).

Almost surely, 2^18801036 is an apocalyptic number.

It is an amenable number.

18801036 is an abundant number, since it is smaller than the sum of its proper divisors (28723896).

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

18801036 is a wasteful number, since it uses less digits than its factorization.

18801036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522261 (or 522256 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 18801036 is about 4336.0161438814. The cubic root of 18801036 is about 265.9054632302.

It can be divided in two parts, 1880 and 1036, that added together give a square (2916 = 54²).

The spelling of 18801036 in words is "eighteen million, eight hundred one thousand, thirty-six".