8159418 has 12 divisors (see below), whose sum is σ = 17678778. Its totient is φ = 2719800.

The previous prime is 8159399. The next prime is 8159419. The reversal of 8159418 is 8149518.

It can be written as a sum of positive squares in only one way, i.e., 7112889 + 1046529 = 2667^2 + 1023^2 .

It is a super-2 number, since 2×8159418² = 133152204197448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8159419) 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 5 ways as a sum of consecutive naturals, for example, 226633 + ... + 226668.

Almost surely, 2^8159418 is an apocalyptic number.

8159418 is an abundant number, since it is smaller than the sum of its proper divisors (9519360).

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

8159418 is a wasteful number, since it uses less digits than its factorization.

8159418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453309 (or 453306 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 8159418 is about 2856.4694992245. The cubic root of 8159418 is about 201.3197554059.

The spelling of 8159418 in words is "eight million, one hundred fifty-nine thousand, four hundred eighteen".