8201240 has 16 divisors (see below), whose sum is σ = 18452880. Its totient is φ = 3280480.

The previous prime is 8201239. The next prime is 8201251. The reversal of 8201240 is 421028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102476 + ... + 102555.

It is an arithmetic number, because the mean of its divisors is an integer number (1153305).

Almost surely, 2^8201240 is an apocalyptic number.

It is an amenable number.

8201240 is an abundant number, since it is smaller than the sum of its proper divisors (10251640).

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

8201240 is a wasteful number, since it uses less digits than its factorization.

8201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205042 (or 205038 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 8201240 is about 2863.7807178623. The cubic root of 8201240 is about 201.6631316306.

Adding to 8201240 its reverse (421028), we get a palindrome (8622268).

The spelling of 8201240 in words is "eight million, two hundred one thousand, two hundred forty".