16538088 has 96 divisors (see below), whose sum is σ = 49412160. Its totient is φ = 4609920.

The previous prime is 16538087. The next prime is 16538099. The reversal of 16538088 is 88083561.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16538087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403348 + ... + 403388.

It is an arithmetic number, because the mean of its divisors is an integer number (514710).

Almost surely, 2^16538088 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 16538088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24706080).

16538088 is an abundant number, since it is smaller than the sum of its proper divisors (32874072).

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

16538088 is an frugal number, since it uses more digits than its factorization.

16538088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 16538088 is about 4066.7048085643. The cubic root of 16538088 is about 254.7779073547. Note that the first 3 decimals are identical.

The spelling of 16538088 in words is "sixteen million, five hundred thirty-eight thousand, eighty-eight".