1441509918 has 16 divisors (see below), whose sum is σ = 2886195456. Its totient is φ = 479974040.

The previous prime is 1441509913. The next prime is 1441509943. The reversal of 1441509918 is 8199051441.

It is a self number, because there is not a number n which added to its sum of digits gives 1441509918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441509913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126396 + ... + 137327.

It is an arithmetic number, because the mean of its divisors is an integer number (180387216).

Almost surely, 2^1441509918 is an apocalyptic number.

1441509918 is an abundant number, since it is smaller than the sum of its proper divisors (1444685538).

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

1441509918 is a wasteful number, since it uses less digits than its factorization.

1441509918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264639.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 1441509918 is about 37967.2216260289. The cubic root of 1441509918 is about 1129.6377876856.

The spelling of 1441509918 in words is "one billion, four hundred forty-one million, five hundred nine thousand, nine hundred eighteen".