8361240 has 32 divisors (see below), whose sum is σ = 25084080. Its totient is φ = 2229632.

The previous prime is 8361233. The next prime is 8361257. The reversal of 8361240 is 421638.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 8361240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34719 + ... + 34958.

Almost surely, 2^8361240 is an apocalyptic number.

It is an amenable number.

8361240 is an abundant number, since it is smaller than the sum of its proper divisors (16722840).

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

8361240 is a wasteful number, since it uses less digits than its factorization.

8361240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69691 (or 69687 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 8361240 is about 2891.5808824932. The cubic root of 8361240 is about 202.9661263418.

Adding to 8361240 its reverse (421638), we get a palindrome (8782878).

The spelling of 8361240 in words is "eight million, three hundred sixty-one thousand, two hundred forty".