3918938936 has 64 divisors (see below), whose sum is σ = 8449056000. Its totient is φ = 1685352960.

The previous prime is 3918938899. The next prime is 3918938939. The reversal of 3918938936 is 6398398193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918938939) 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, 2204480 + ... + 2206256.

It is an arithmetic number, because the mean of its divisors is an integer number (132016500).

Almost surely, 2^3918938936 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 3918938936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4224528000).

3918938936 is an abundant number, since it is smaller than the sum of its proper divisors (4530117064).

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

3918938936 is a wasteful number, since it uses less digits than its factorization.

3918938936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132 (or 3128 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 59.

The square root of 3918938936 is about 62601.4291849635. The cubic root of 3918938936 is about 1576.6047553687.

It can be divided in two parts, 39189 and 38936, that added together give a 7-th power (78125 = 5⁷).

The spelling of 3918938936 in words is "three billion, nine hundred eighteen million, nine hundred thirty-eight thousand, nine hundred thirty-six".