9469440918 has 80 divisors (see below), whose sum is σ = 24336902304. Its totient is φ = 2695835520.

The previous prime is 9469440917. The next prime is 9469440919. The reversal of 9469440918 is 8190449649.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9469440917) and next prime (9469440919).

It is a super-2 number, since 2×9469440918² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9469440917) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 303796 + ... + 333512.

Almost surely, 2^9469440918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9469440918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12168451152).

9469440918 is an abundant number, since it is smaller than the sum of its proper divisors (14867461386).

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

9469440918 is a wasteful number, since it uses less digits than its factorization.

9469440918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30019 (or 30010 counting only the distinct ones).

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

The square root of 9469440918 is about 97311.0523938571. The cubic root of 9469440918 is about 2115.6384250441.

The spelling of 9469440918 in words is "nine billion, four hundred sixty-nine million, four hundred forty thousand, nine hundred eighteen".