1144960992 has 72 divisors (see below), whose sum is σ = 3721129776. Its totient is φ = 327131136.

The previous prime is 1144960979. The next prime is 1144960997. The reversal of 1144960992 is 2990694411.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144960997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281953 + ... + 285984.

It is an arithmetic number, because the mean of its divisors is an integer number (51682358).

Almost surely, 2^1144960992 is an apocalyptic number.

1144960992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1144960992 is an abundant number, since it is smaller than the sum of its proper divisors (2576168784).

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

1144960992 is a wasteful number, since it uses less digits than its factorization.

1144960992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567960 (or 567949 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1144960992 is about 33837.2722304857. The cubic root of 1144960992 is about 1046.1570761456.

The spelling of 1144960992 in words is "one billion, one hundred forty-four million, nine hundred sixty thousand, nine hundred ninety-two".