8152440 has 64 divisors (see below), whose sum is σ = 25068960. Its totient is φ = 2119680.

The previous prime is 8152429. The next prime is 8152447. The reversal of 8152440 is 442518.

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 8152440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8152447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4092 + ... + 5748.

Almost surely, 2^8152440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8152440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12534480).

8152440 is an abundant number, since it is smaller than the sum of its proper divisors (16916520).

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

8152440 is a wasteful number, since it uses less digits than its factorization.

8152440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1708 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 8152440 is about 2855.2478001042. The cubic root of 8152440 is about 201.2623489458.

Adding to 8152440 its reverse (442518), we get a palindrome (8594958).

The spelling of 8152440 in words is "eight million, one hundred fifty-two thousand, four hundred forty".