1163896272 has 240 divisors, whose sum is σ = 4172268672. Its totient is φ = 294036480.

The previous prime is 1163896267. The next prime is 1163896273. The reversal of 1163896272 is 2726983611.

1163896272 is a `hidden beast` number, since 1 + 1 + 638 + 9 + 6 + 2 + 7 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163896273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 408838 + ... + 411674.

Almost surely, 2^1163896272 is an apocalyptic number.

1163896272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163896272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2086134336).

1163896272 is an abundant number, since it is smaller than the sum of its proper divisors (3008372400).

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

1163896272 is a wasteful number, since it uses less digits than its factorization.

1163896272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906 (or 2897 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 1163896272 is about 34115.9240238338. The cubic root of 1163896272 is about 1051.8926625487.

The spelling of 1163896272 in words is "one billion, one hundred sixty-three million, eight hundred ninety-six thousand, two hundred seventy-two".