1168272644 has 48 divisors (see below), whose sum is σ = 2566166400. Its totient is φ = 452098560.

The previous prime is 1168272643. The next prime is 1168272647. The reversal of 1168272644 is 4462728611.

It is not an unprimeable number, because it can be changed into a prime (1168272643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33164 + ... + 58620.

It is an arithmetic number, because the mean of its divisors is an integer number (53461800).

Almost surely, 2^1168272644 is an apocalyptic number.

1168272644 is a gapful number since it is divisible by the number (14) 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 1168272644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283083200).

1168272644 is an abundant number, since it is smaller than the sum of its proper divisors (1397893756).

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

1168272644 is a wasteful number, since it uses less digits than its factorization.

1168272644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25628 (or 25626 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 1168272644 is about 34180.0035693386. The cubic root of 1168272644 is about 1053.2094224356.

The spelling of 1168272644 in words is "one billion, one hundred sixty-eight million, two hundred seventy-two thousand, six hundred forty-four".