39385280 has 112 divisors (see below), whose sum is σ = 104461056. Its totient is φ = 14023680.

The previous prime is 39385267. The next prime is 39385289. The reversal of 39385280 is 8258393.

It is not an unprimeable number, because it can be changed into a prime (39385289) 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, 235757 + ... + 235923.

It is an arithmetic number, because the mean of its divisors is an integer number (932688).

Almost surely, 2^39385280 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 39385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52230528).

39385280 is an abundant number, since it is smaller than the sum of its proper divisors (65075776).

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

39385280 is a wasteful number, since it uses less digits than its factorization.

39385280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 39385280 is about 6275.7692755550. The cubic root of 39385280 is about 340.2342100223.

The spelling of 39385280 in words is "thirty-nine million, three hundred eighty-five thousand, two hundred eighty".