39905282 has 8 divisors (see below), whose sum is σ = 63008400. Its totient is φ = 18902484.

The previous prime is 39905233. The next prime is 39905287. The reversal of 39905282 is 28250993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1050139 = 39905282 / (3 + 9 + 9 + 0 + 5 + 2 + 8 + 2).

It is not an unprimeable number, because it can be changed into a prime (39905287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525032 + ... + 525107.

It is an arithmetic number, because the mean of its divisors is an integer number (7876050).

Almost surely, 2^39905282 is an apocalyptic number.

39905282 is a deficient number, since it is larger than the sum of its proper divisors (23103118).

39905282 is a wasteful number, since it uses less digits than its factorization.

39905282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050160.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 39905282 is about 6317.0627668245. The cubic root of 39905282 is about 341.7250334816.

The spelling of 39905282 in words is "thirty-nine million, nine hundred five thousand, two hundred eighty-two".