1440494918 has 16 divisors (see below), whose sum is σ = 2347837440. Its totient is φ = 660328200.

The previous prime is 1440494917. The next prime is 1440494933. The reversal of 1440494918 is 8194940441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440494917) 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, 610238 + ... + 612593.

It is an arithmetic number, because the mean of its divisors is an integer number (146739840).

Almost surely, 2^1440494918 is an apocalyptic number.

1440494918 is a deficient number, since it is larger than the sum of its proper divisors (907342522).

1440494918 is a wasteful number, since it uses less digits than its factorization.

1440494918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222883.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 1440494918 is about 37953.8524790304. The cubic root of 1440494918 is about 1129.3725908580.

The spelling of 1440494918 in words is "one billion, four hundred forty million, four hundred ninety-four thousand, nine hundred eighteen".