9836474040 has 384 divisors, whose sum is σ = 36871848000. Its totient is φ = 2257403904.

The previous prime is 9836474033. The next prime is 9836474071. The reversal of 9836474040 is 404746389.

It is a Cunningham number, because it is equal to 99179²-1.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3370662 + ... + 3373578.

Almost surely, 2^9836474040 is an apocalyptic number.

9836474040 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9836474040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18435924000).

9836474040 is an abundant number, since it is smaller than the sum of its proper divisors (27035373960).

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

9836474040 is a wasteful number, since it uses less digits than its factorization.

9836474040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999 (or 2992 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 9836474040 is about 99178.9999949586. Note that the first 5 decimals coincide. The cubic root of 9836474040 is about 2142.6265562929.

The spelling of 9836474040 in words is "nine billion, eight hundred thirty-six million, four hundred seventy-four thousand, forty".