8468240 has 40 divisors (see below), whose sum is σ = 21480768. Its totient is φ = 3079040.

The previous prime is 8468237. The next prime is 8468249. The reversal of 8468240 is 428648.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×8468240² = 143422177395200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8468197 and 8468206.

It is not an unprimeable number, because it can be changed into a prime (8468249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3932 + ... + 5691.

Almost surely, 2^8468240 is an apocalyptic number.

8468240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8468240 is an abundant number, since it is smaller than the sum of its proper divisors (13012528).

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

8468240 is a wasteful number, since it uses less digits than its factorization.

8468240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9647 (or 9641 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 8468240 is about 2910.0240548834. The cubic root of 8468240 is about 203.8282547839.

The spelling of 8468240 in words is "eight million, four hundred sixty-eight thousand, two hundred forty".