3939624018 has 48 divisors (see below), whose sum is σ = 9346326912. Its totient is φ = 1189404000.

The previous prime is 3939624011. The next prime is 3939624019. The reversal of 3939624018 is 8104269393.

It is a happy number.

3939624018 is a `hidden beast` number, since 3 + 9 + 3 + 9 + 624 + 0 + 18 = 666.

3939624018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3939624011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16948 + ... + 90368.

It is an arithmetic number, because the mean of its divisors is an integer number (194715144).

Almost surely, 2^3939624018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3939624018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4673163456).

3939624018 is an abundant number, since it is smaller than the sum of its proper divisors (5406702894).

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

3939624018 is a wasteful number, since it uses less digits than its factorization.

3939624018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73711 (or 73708 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 3939624018 is about 62766.4242887868. The cubic root of 3939624018 is about 1579.3737861833.

The spelling of 3939624018 in words is "three billion, nine hundred thirty-nine million, six hundred twenty-four thousand, eighteen".