9018386946 has 24 divisors (see below), whose sum is σ = 19590084540. Its totient is φ = 2998398816.

The previous prime is 9018386941. The next prime is 9018386957. The reversal of 9018386946 is 6496838109.

It can be written as a sum of positive squares in 2 ways, for example, as 9018351225 + 35721 = 94965^2 + 189^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9018386892 and 9018386901.

It is not an unprimeable number, because it can be changed into a prime (9018386941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636985 + ... + 650988.

Almost surely, 2^9018386946 is an apocalyptic number.

9018386946 is an abundant number, since it is smaller than the sum of its proper divisors (10571697594).

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

9018386946 is a wasteful number, since it uses less digits than its factorization.

9018386946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288370 (or 1288367 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 9018386946 is about 94965.1880743675. The cubic root of 9018386946 is about 2081.4993924125.

The spelling of 9018386946 in words is "nine billion, eighteen million, three hundred eighty-six thousand, nine hundred forty-six".