39663960 has 128 divisors (see below), whose sum is σ = 141972480. Its totient is φ = 8667648.

The previous prime is 39663959. The next prime is 39663971. The reversal of 39663960 is 6936693.

39663960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18294 + ... + 20346.

It is an arithmetic number, because the mean of its divisors is an integer number (1109160).

Almost surely, 2^39663960 is an apocalyptic number.

39663960 is a gapful number since it is divisible by the number (30) 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 39663960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70986240).

39663960 is an abundant number, since it is smaller than the sum of its proper divisors (102308520).

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

39663960 is a wasteful number, since it uses less digits than its factorization.

39663960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 42.

The square root of 39663960 is about 6297.9329942450. The cubic root of 39663960 is about 341.0347943386.

The spelling of 39663960 in words is "thirty-nine million, six hundred sixty-three thousand, nine hundred sixty".