4012918938 has 96 divisors (see below), whose sum is σ = 10476011520. Its totient is φ = 1085905440.

The previous prime is 4012918933. The next prime is 4012918967. The reversal of 4012918938 is 8398192104.

It is a super-2 number, since 2×4012918938² = 32207036805918095688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4012918893 and 4012918902.

It is not an unprimeable number, because it can be changed into a prime (4012918933) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172653 + ... + 194511.

It is an arithmetic number, because the mean of its divisors is an integer number (109125120).

Almost surely, 2^4012918938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4012918938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5238005760).

4012918938 is an abundant number, since it is smaller than the sum of its proper divisors (6463092582).

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

4012918938 is a wasteful number, since it uses less digits than its factorization.

4012918938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21952 (or 21949 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 4012918938 is about 63347.6040430891. The cubic root of 4012918938 is about 1589.1081767462.

The spelling of 4012918938 in words is "four billion, twelve million, nine hundred eighteen thousand, nine hundred thirty-eight".