1440451489 has 8 divisors (see below), whose sum is σ = 1490650560. Its totient is φ = 1390287696.

The previous prime is 1440451451. The next prime is 1440451511. The reversal of 1440451489 is 9841540441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1440451489 - 2¹³ = 1440443297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440401489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95242 + ... + 109324.

It is an arithmetic number, because the mean of its divisors is an integer number (186331320).

Almost surely, 2^1440451489 is an apocalyptic number.

It is an amenable number.

1440451489 is a deficient number, since it is larger than the sum of its proper divisors (50199071).

1440451489 is a wasteful number, since it uses less digits than its factorization.

1440451489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17639.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 1440451489 is about 37953.2803457092. The cubic root of 1440451489 is about 1129.3612410517.

It can be divided in two parts, 1440 and 451489, that added together give a square (452929 = 673²).

The spelling of 1440451489 in words is "one billion, four hundred forty million, four hundred fifty-one thousand, four hundred eighty-nine".