8490796440 has 384 divisors, whose sum is σ = 30466782720. Its totient is φ = 1886976000.

The previous prime is 8490796427. The next prime is 8490796463. The reversal of 8490796440 is 446970948.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56230365 + ... + 56230515.

It is an arithmetic number, because the mean of its divisors is an integer number (79340580).

Almost surely, 2^8490796440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8490796440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15233391360).

8490796440 is an abundant number, since it is smaller than the sum of its proper divisors (21975986280).

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

8490796440 is a wasteful number, since it uses less digits than its factorization.

8490796440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 8490796440 is about 92145.5177423189. The cubic root of 8490796440 is about 2040.0907014651.

The spelling of 8490796440 in words is "eight billion, four hundred ninety million, seven hundred ninety-six thousand, four hundred forty".