8160240 has 120 divisors (see below), whose sum is σ = 27904464. Its totient is φ = 1971200.

The previous prime is 8160227. The next prime is 8160247. The reversal of 8160240 is 420618.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8160247) 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, 28900 + ... + 29180.

Almost surely, 2^8160240 is an apocalyptic number.

8160240 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 8160240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13952232).

8160240 is an abundant number, since it is smaller than the sum of its proper divisors (19744224).

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

8160240 is a wasteful number, since it uses less digits than its factorization.

8160240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 8160240 is about 2856.6133795108. The cubic root of 8160240 is about 201.3265156627.

Adding to 8160240 its reverse (420618), we get a palindrome (8580858).

The spelling of 8160240 in words is "eight million, one hundred sixty thousand, two hundred forty".