1440495168 has 112 divisors (see below), whose sum is σ = 4396191360. Its totient is φ = 407752704.

The previous prime is 1440495157. The next prime is 1440495169. The reversal of 1440495168 is 8615940441.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1440495169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141580 + ... + 151412.

Almost surely, 2^1440495168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440495168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2198095680).

1440495168 is an abundant number, since it is smaller than the sum of its proper divisors (2955696192).

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

1440495168 is a wasteful number, since it uses less digits than its factorization.

1440495168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9964 (or 9954 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1440495168 is about 37953.8557725035. The cubic root of 1440495168 is about 1129.3726561928.

The spelling of 1440495168 in words is "one billion, four hundred forty million, four hundred ninety-five thousand, one hundred sixty-eight".