18573696 has 96 divisors (see below), whose sum is σ = 55851120. Its totient is φ = 5913600.

The previous prime is 18573689. The next prime is 18573703. The reversal of 18573696 is 69637581.

It is a happy number.

18573696 is a `hidden beast` number, since 18 + 573 + 69 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (18573689) and next prime (18573703).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26146 + ... + 26846.

Almost surely, 2^18573696 is an apocalyptic number.

18573696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

18573696 is the 2304-th nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18573696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27925560).

18573696 is an abundant number, since it is smaller than the sum of its proper divisors (37277424).

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

18573696 is a wasteful number, since it uses less digits than its factorization.

18573696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 729 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 18573696 is about 4309.7211046656. The cubic root of 18573696 is about 264.8293478241.

The spelling of 18573696 in words is "eighteen million, five hundred seventy-three thousand, six hundred ninety-six".