9118248440 has 64 divisors (see below), whose sum is σ = 24255460800. Its totient is φ = 3018451968.

The previous prime is 9118248389. The next prime is 9118248443. The reversal of 9118248440 is 448428119.

It is a happy number.

It is a super-2 number, since 2×9118248440² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9118248443) 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, 553349 + ... + 569588.

It is an arithmetic number, because the mean of its divisors is an integer number (378991575).

Almost surely, 2^9118248440 is an apocalyptic number.

It is an amenable number.

9118248440 is an abundant number, since it is smaller than the sum of its proper divisors (15137212360).

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

9118248440 is a wasteful number, since it uses less digits than its factorization.

9118248440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122984 (or 1122980 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 9118248440 is about 95489.5200532498. The cubic root of 9118248440 is about 2089.1540909496.

The spelling of 9118248440 in words is "nine billion, one hundred eighteen million, two hundred forty-eight thousand, four hundred forty".