18281796 has 24 divisors (see below), whose sum is σ = 45939264. Its totient is φ = 5625120.

The previous prime is 18281773. The next prime is 18281801. The reversal of 18281796 is 69718281.

18281796 is nontrivially palindromic in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58440 + ... + 58751.

It is an arithmetic number, because the mean of its divisors is an integer number (1914136).

Almost surely, 2^18281796 is an apocalyptic number.

It is an amenable number.

18281796 is an abundant number, since it is smaller than the sum of its proper divisors (27657468).

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

18281796 is a wasteful number, since it uses less digits than its factorization.

18281796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117211 (or 117209 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The square root of 18281796 is about 4275.7216934688. The cubic root of 18281796 is about 263.4346833438.

The spelling of 18281796 in words is "eighteen million, two hundred eighty-one thousand, seven hundred ninety-six".