8416240 has 120 divisors (see below), whose sum is σ = 24172560. Its totient is φ = 2709504.

The previous prime is 8416223. The next prime is 8416249. The reversal of 8416240 is 426148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8416249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74424 + ... + 74536.

It is an arithmetic number, because the mean of its divisors is an integer number (201438).

Almost surely, 2^8416240 is an apocalyptic number.

8416240 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 8416240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12086280).

8416240 is an abundant number, since it is smaller than the sum of its proper divisors (15756320).

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

8416240 is a wasteful number, since it uses less digits than its factorization.

8416240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 8416240 is about 2901.0756625776. The cubic root of 8416240 is about 203.4101892270.

The spelling of 8416240 in words is "eight million, four hundred sixteen thousand, two hundred forty".