39955356 has 120 divisors (see below), whose sum is σ = 121425920. Its totient is φ = 11220768.

The previous prime is 39955351. The next prime is 39955369. The reversal of 39955356 is 65355993.

It is a happy number.

39955356 is a `hidden beast` number, since 3 + 99 + 553 + 5 + 6 = 666.

39955356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39955351) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 179061 + ... + 179283.

Almost surely, 2^39955356 is an apocalyptic number.

39955356 is a gapful number since it is divisible by the number (36) 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 39955356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60712960).

39955356 is an abundant number, since it is smaller than the sum of its proper divisors (81470564).

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

39955356 is a wasteful number, since it uses less digits than its factorization.

39955356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 314 counting only the distinct ones).

The product of its digits is 546750, while the sum is 45.

The square root of 39955356 is about 6321.0249168944. The cubic root of 39955356 is about 341.8679083606.

It can be divided in two parts, 399 and 55356, that added together give a palindrome (55755).

The spelling of 39955356 in words is "thirty-nine million, nine hundred fifty-five thousand, three hundred fifty-six".