1147168920 has 64 divisors (see below), whose sum is σ = 3459594240. Its totient is φ = 304304000.

The previous prime is 1147168901. The next prime is 1147168927. The reversal of 1147168920 is 298617411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147168927) 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, 2106 + ... + 47945.

It is an arithmetic number, because the mean of its divisors is an integer number (54056160).

Almost surely, 2^1147168920 is an apocalyptic number.

1147168920 is a gapful number since it is divisible by the number (10) 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 1147168920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729797120).

1147168920 is an abundant number, since it is smaller than the sum of its proper divisors (2312425320).

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

1147168920 is a wasteful number, since it uses less digits than its factorization.

1147168920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50256 (or 50252 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1147168920 is about 33869.8821964293. The cubic root of 1147168920 is about 1046.8291096183.

The spelling of 1147168920 in words is "one billion, one hundred forty-seven million, one hundred sixty-eight thousand, nine hundred twenty".