1144462320 has 120 divisors (see below), whose sum is σ = 3849610752. Its totient is φ = 304704000.

The previous prime is 1144462307. The next prime is 1144462327. The reversal of 1144462320 is 232644411.

It is a happy number.

1144462320 is a `hidden beast` number, since 1 + 14 + 4 + 4 + 623 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144462327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 828030 + ... + 829410.

Almost surely, 2^1144462320 is an apocalyptic number.

1144462320 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 1144462320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924805376).

1144462320 is an abundant number, since it is smaller than the sum of its proper divisors (2705148432).

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

1144462320 is a wasteful number, since it uses less digits than its factorization.

1144462320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1144462320 is about 33829.9027488995. The cubic root of 1144462320 is about 1046.0051743191.

The spelling of 1144462320 in words is "one billion, one hundred forty-four million, four hundred sixty-two thousand, three hundred twenty".