18545696 has 48 divisors (see below), whose sum is σ = 39778200. Its totient is φ = 8460288.

The previous prime is 18545693. The next prime is 18545699. The reversal of 18545696 is 69654581.

It is an interprime number because it is at equal distance from previous prime (18545693) and next prime (18545699).

It can be written as a sum of positive squares in 4 ways, for example, as 17472400 + 1073296 = 4180^2 + 1036^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18545693) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45140 + ... + 45548.

Almost surely, 2^18545696 is an apocalyptic number.

18545696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18545696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19889100).

18545696 is an abundant number, since it is smaller than the sum of its proper divisors (21232504).

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

18545696 is a wasteful number, since it uses less digits than its factorization.

18545696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 533 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 18545696 is about 4306.4714094024. The cubic root of 18545696 is about 264.6962034205.

The spelling of 18545696 in words is "eighteen million, five hundred forty-five thousand, six hundred ninety-six".