39520992 has 96 divisors (see below), whose sum is σ = 123766272. Its totient is φ = 10796544.

The previous prime is 39520991. The next prime is 39521011. The reversal of 39520992 is 29902593.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 39520992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39520991) 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, 14178 + ... + 16734.

It is an arithmetic number, because the mean of its divisors is an integer number (1289232).

Almost surely, 2^39520992 is an apocalyptic number.

39520992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39520992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61883136).

39520992 is an abundant number, since it is smaller than the sum of its proper divisors (84245280).

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

39520992 is a wasteful number, since it uses less digits than its factorization.

39520992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600 (or 2592 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 39520992 is about 6286.5723570162. The cubic root of 39520992 is about 340.6245498633.

The spelling of 39520992 in words is "thirty-nine million, five hundred twenty thousand, nine hundred ninety-two".