18291096 has 72 divisors (see below), whose sum is σ = 51908220. Its totient is φ = 6034176.

The previous prime is 18291089. The next prime is 18291101. The reversal of 18291096 is 69019281.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 18291096.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 188520 + ... + 188616.

Almost surely, 2^18291096 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18291096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25954110).

18291096 is an abundant number, since it is smaller than the sum of its proper divisors (33617124).

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

18291096 is an frugal number, since it uses more digits than its factorization.

18291096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 18291096 is about 4276.8090908994. The cubic root of 18291096 is about 263.4793457545.

Multiplying 18291096 by its product of nonzero digits (7776), we get a square (142231562496 = 377136²).

The spelling of 18291096 in words is "eighteen million, two hundred ninety-one thousand, ninety-six".