1440512980 has 12 divisors (see below), whose sum is σ = 3025077300. Its totient is φ = 576205184.

The previous prime is 1440512933. The next prime is 1440512981. The reversal of 1440512980 is 892150441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 938932164 + 501580816 = 30642^2 + 22396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440512981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36012805 + ... + 36012844.

It is an arithmetic number, because the mean of its divisors is an integer number (252089775).

Almost surely, 2^1440512980 is an apocalyptic number.

1440512980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1440512980 is an abundant number, since it is smaller than the sum of its proper divisors (1584564320).

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

1440512980 is a wasteful number, since it uses less digits than its factorization.

1440512980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72025658 (or 72025656 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1440512980 is about 37954.0904251439. The cubic root of 1440512980 is about 1129.3773111437.

The spelling of 1440512980 in words is "one billion, four hundred forty million, five hundred twelve thousand, nine hundred eighty".