1164244536 has 256 divisors, whose sum is σ = 4049740800. Its totient is φ = 301708800.

The previous prime is 1164244531. The next prime is 1164244559. The reversal of 1164244536 is 6354424611.

1164244536 is a `hidden beast` number, since 1 + 1 + 642 + 4 + 4 + 5 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1164244536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164244531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1198531 + ... + 1199501.

It is an arithmetic number, because the mean of its divisors is an integer number (15819300).

Almost surely, 2^1164244536 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 1164244536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2024870400).

1164244536 is an abundant number, since it is smaller than the sum of its proper divisors (2885496264).

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

1164244536 is a wasteful number, since it uses less digits than its factorization.

1164244536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067 (or 1057 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1164244536 is about 34121.0277688114. The cubic root of 1164244536 is about 1051.9975687511.

The spelling of 1164244536 in words is "one billion, one hundred sixty-four million, two hundred forty-four thousand, five hundred thirty-six".