39385872 has 160 divisors (see below), whose sum is σ = 124277760. Its totient is φ = 11888640.

The previous prime is 39385849. The next prime is 39385877. The reversal of 39385872 is 27858393.

39385872 is a `hidden beast` number, since 39 + 38 + 587 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (39385877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227578 + ... + 227750.

It is an arithmetic number, because the mean of its divisors is an integer number (776736).

Almost surely, 2^39385872 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 39385872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62138880).

39385872 is an abundant number, since it is smaller than the sum of its proper divisors (84891888).

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

39385872 is a wasteful number, since it uses less digits than its factorization.

39385872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 226 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 39385872 is about 6275.8164409103. The cubic root of 39385872 is about 340.2359147001.

The spelling of 39385872 in words is "thirty-nine million, three hundred eighty-five thousand, eight hundred seventy-two".