39216528 has 80 divisors (see below), whose sum is σ = 121242240. Its totient is φ = 12064896.

The previous prime is 39216521. The next prime is 39216539. The reversal of 39216528 is 82561293.

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

It is a junction number, because it is equal to n+sod(n) for n = 39216492 and 39216501.

It is not an unprimeable number, because it can be changed into a prime (39216521) 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 15 ways as a sum of consecutive naturals, for example, 2125 + ... + 9107.

It is an arithmetic number, because the mean of its divisors is an integer number (1515528).

Almost surely, 2^39216528 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 39216528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60621120).

39216528 is an abundant number, since it is smaller than the sum of its proper divisors (82025712).

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

39216528 is a wasteful number, since it uses less digits than its factorization.

39216528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7001 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 39216528 is about 6262.3101168818. The cubic root of 39216528 is about 339.7475865897.

The spelling of 39216528 in words is "thirty-nine million, two hundred sixteen thousand, five hundred twenty-eight".