39960956 has 36 divisors (see below), whose sum is σ = 82821648. Its totient is φ = 16525824.

The previous prime is 39960941. The next prime is 39960967. The reversal of 39960956 is 65906993.

It is a self number, because there is not a number n which added to its sum of digits gives 39960956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22700 + ... + 24396.

Almost surely, 2^39960956 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 39960956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41410824).

39960956 is an abundant number, since it is smaller than the sum of its proper divisors (42860692).

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

39960956 is a wasteful number, since it uses less digits than its factorization.

39960956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766 (or 1735 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 47.

The square root of 39960956 is about 6321.4678675131. The cubic root of 39960956 is about 341.8838792761.

The spelling of 39960956 in words is "thirty-nine million, nine hundred sixty thousand, nine hundred fifty-six".