39975208 has 64 divisors (see below), whose sum is σ = 94469760. Its totient is φ = 15434496.

The previous prime is 39975193. The next prime is 39975217. The reversal of 39975208 is 80257993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30666 + ... + 31942.

It is an arithmetic number, because the mean of its divisors is an integer number (1476090).

Almost surely, 2^39975208 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 39975208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47234880).

39975208 is an abundant number, since it is smaller than the sum of its proper divisors (54494552).

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

39975208 is a wasteful number, since it uses less digits than its factorization.

39975208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 39975208 is about 6322.5950368500. The cubic root of 39975208 is about 341.9245185266.

The spelling of 39975208 in words is "thirty-nine million, nine hundred seventy-five thousand, two hundred eight".