8494640 has 120 divisors (see below), whose sum is σ = 25190352. Its totient is φ = 2634240.

The previous prime is 8494627. The next prime is 8494657. The reversal of 8494640 is 464948.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 8494640.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43022 + ... + 43218.

Almost surely, 2^8494640 is an apocalyptic number.

8494640 is a gapful number since it is divisible by the number (80) 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 8494640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12595176).

8494640 is an abundant number, since it is smaller than the sum of its proper divisors (16695712).

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

8494640 is a wasteful number, since it uses less digits than its factorization.

8494640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 8494640 is about 2914.5565700463. The cubic root of 8494640 is about 204.0398486810.

The spelling of 8494640 in words is "eight million, four hundred ninety-four thousand, six hundred forty".