1144886320 has 40 divisors (see below), whose sum is σ = 2677279536. Its totient is φ = 455301888.

The previous prime is 1144886317. The next prime is 1144886357. The reversal of 1144886320 is 236884411.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1144886320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27522 + ... + 55201.

Almost surely, 2^1144886320 is an apocalyptic number.

1144886320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144886320 is an abundant number, since it is smaller than the sum of its proper divisors (1532393216).

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

1144886320 is a wasteful number, since it uses less digits than its factorization.

1144886320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82909 (or 82903 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 1144886320 is about 33836.1688138595. The cubic root of 1144886320 is about 1046.1343329139.

The spelling of 1144886320 in words is "one billion, one hundred forty-four million, eight hundred eighty-six thousand, three hundred twenty".