39956120 has 64 divisors (see below), whose sum is σ = 96720480. Its totient is φ = 14800896.

The previous prime is 39956089. The next prime is 39956123. The reversal of 39956120 is 2165993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39956123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45122 + ... + 45998.

Almost surely, 2^39956120 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 39956120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48360240).

39956120 is an abundant number, since it is smaller than the sum of its proper divisors (56764360).

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

39956120 is a wasteful number, since it uses less digits than its factorization.

39956120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 39956120 is about 6321.0853498430. The cubic root of 39956120 is about 341.8700873377.

The spelling of 39956120 in words is "thirty-nine million, nine hundred fifty-six thousand, one hundred twenty".