11945718 has 40 divisors (see below), whose sum is σ = 28183320. Its totient is φ = 3771360.

The previous prime is 11945711. The next prime is 11945729. The reversal of 11945718 is 81754911.

It is a Curzon number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11945711) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1138 + ... + 5018.

It is an arithmetic number, because the mean of its divisors is an integer number (704583).

Almost surely, 2^11945718 is an apocalyptic number.

11945718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11945718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14091660).

11945718 is an abundant number, since it is smaller than the sum of its proper divisors (16237602).

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

11945718 is a wasteful number, since it uses less digits than its factorization.

11945718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914 (or 3905 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 11945718 is about 3456.2578028845. The cubic root of 11945718 is about 228.5971190246.

The spelling of 11945718 in words is "eleven million, nine hundred forty-five thousand, seven hundred eighteen".