39145056 has 48 divisors (see below), whose sum is σ = 103393584. Its totient is φ = 12967424.

The previous prime is 39145039. The next prime is 39145063. The reversal of 39145056 is 65054193.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15430 + ... + 17786.

It is an arithmetic number, because the mean of its divisors is an integer number (2154033).

Almost surely, 2^39145056 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 39145056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51696792).

39145056 is an abundant number, since it is smaller than the sum of its proper divisors (64248528).

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

39145056 is a wasteful number, since it uses less digits than its factorization.

39145056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543 (or 2535 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 39145056 is about 6256.6009941501. The cubic root of 39145056 is about 339.5410647713.

The spelling of 39145056 in words is "thirty-nine million, one hundred forty-five thousand, fifty-six".