1163264436 has 96 divisors (see below), whose sum is σ = 3193344000. Its totient is φ = 365179104.

The previous prime is 1163264419. The next prime is 1163264437. The reversal of 1163264436 is 6344623611.

1163264436 is a `hidden beast` number, since 1 + 1 + 6 + 3 + 2 + 644 + 3 + 6 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1163264436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163264437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365725 + ... + 368891.

It is an arithmetic number, because the mean of its divisors is an integer number (33264000).

Almost surely, 2^1163264436 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 1163264436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1596672000).

1163264436 is an abundant number, since it is smaller than the sum of its proper divisors (2030079564).

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

1163264436 is a wasteful number, since it uses less digits than its factorization.

1163264436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3370 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 1163264436 is about 34106.6626335677. The cubic root of 1163264436 is about 1051.7022836260.

The spelling of 1163264436 in words is "one billion, one hundred sixty-three million, two hundred sixty-four thousand, four hundred thirty-six".