1144980280 has 32 divisors (see below), whose sum is σ = 2711797200. Its totient is φ = 433886976.

The previous prime is 1144980247. The next prime is 1144980341. The reversal of 1144980280 is 820894411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752517 + ... + 754036.

Almost surely, 2^1144980280 is an apocalyptic number.

1144980280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144980280 is an abundant number, since it is smaller than the sum of its proper divisors (1566816920).

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

1144980280 is a wasteful number, since it uses less digits than its factorization.

1144980280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506583 (or 1506579 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1144980280 is about 33837.5572404392. The cubic root of 1144980280 is about 1046.1629506294.

The spelling of 1144980280 in words is "one billion, one hundred forty-four million, nine hundred eighty thousand, two hundred eighty".