8499040 has 72 divisors (see below), whose sum is σ = 22120560. Its totient is φ = 3083520.

The previous prime is 8499037. The next prime is 8499041. The reversal of 8499040 is 409948.

It is a junction number, because it is equal to n+sod(n) for n = 8498987 and 8499005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8499041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19141 + ... + 19579.

It is an arithmetic number, because the mean of its divisors is an integer number (307230).

Almost surely, 2^8499040 is an apocalyptic number.

8499040 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 8499040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11060280).

8499040 is an abundant number, since it is smaller than the sum of its proper divisors (13621520).

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

8499040 is a wasteful number, since it uses less digits than its factorization.

8499040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 8499040 is about 2915.3113041320. The cubic root of 8499040 is about 204.0750716911.

It can be divided in two parts, 849 and 9040, that added together give a palindrome (9889).

The spelling of 8499040 in words is "eight million, four hundred ninety-nine thousand, forty".