1159638 has 16 divisors (see below), whose sum is σ = 2455920. Its totient is φ = 363776.

The previous prime is 1159633. The next prime is 1159649. The reversal of 1159638 is 8369511.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1159599 and 1159608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159633) 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 7 ways as a sum of consecutive naturals, for example, 5583 + ... + 5786.

It is an arithmetic number, because the mean of its divisors is an integer number (153495).

2^1159638 is an apocalyptic number.

1159638 is an abundant number, since it is smaller than the sum of its proper divisors (1296282).

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

1159638 is a wasteful number, since it uses less digits than its factorization.

1159638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11391.

The product of its digits is 6480, while the sum is 33.

The square root of 1159638 is about 1076.8648940327. The cubic root of 1159638 is about 105.0608264345.

The spelling of 1159638 in words is "one million, one hundred fifty-nine thousand, six hundred thirty-eight".