8157344 has 24 divisors (see below), whose sum is σ = 17296020. Its totient is φ = 3764736.

The previous prime is 8157343. The next prime is 8157379. The reversal of 8157344 is 4437518.

It can be written as a sum of positive squares in 2 ways, for example, as 7907344 + 250000 = 2812^2 + 500^2 .

It is a super-2 number, since 2×8157344² = 133084522268672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 8157344.

It is not an unprimeable number, because it can be changed into a prime (8157343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9389 + ... + 10220.

Almost surely, 2^8157344 is an apocalyptic number.

It is an amenable number.

8157344 is an abundant number, since it is smaller than the sum of its proper divisors (9138676).

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

8157344 is a wasteful number, since it uses less digits than its factorization.

8157344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19632 (or 19624 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 8157344 is about 2856.1064405936. The cubic root of 8157344 is about 201.3026964868.

The spelling of 8157344 in words is "eight million, one hundred fifty-seven thousand, three hundred forty-four".