16775232 has 56 divisors (see below), whose sum is σ = 45488352. Its totient is φ = 5452800.

The previous prime is 16775221. The next prime is 16775237. The reversal of 16775232 is 23257761.

It is a nialpdrome in base 8 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16775193 and 16775202.

It is not an unprimeable number, because it can be changed into a prime (16775237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6807 + ... + 8937.

It is an arithmetic number, because the mean of its divisors is an integer number (812292).

Almost surely, 2^16775232 is an apocalyptic number.

16775232 is a gapful number since it is divisible by the number (12) 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 16775232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22744176).

16775232 is an abundant number, since it is smaller than the sum of its proper divisors (28713120).

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

16775232 is a wasteful number, since it uses less digits than its factorization.

16775232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2177 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 16775232 is about 4095.7578053396. The cubic root of 16775232 is about 255.9899084564.

The spelling of 16775232 in words is "sixteen million, seven hundred seventy-five thousand, two hundred thirty-two".