1440988704 has 120 divisors (see below), whose sum is σ = 4266105228. Its totient is φ = 477135360.

The previous prime is 1440988693. The next prime is 1440988727. The reversal of 1440988704 is 4078890441.

1440988704 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1409852304 + 31136400 = 37548^2 + 5580^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1440988704.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 405174 + ... + 408714.

Almost surely, 2^1440988704 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 1440988704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133052614).

1440988704 is an abundant number, since it is smaller than the sum of its proper divisors (2825116524).

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

1440988704 is a wasteful number, since it uses less digits than its factorization.

1440988704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1440988704 is about 37960.3570056974. The cubic root of 1440988704 is about 1129.5016216651.

The spelling of 1440988704 in words is "one billion, four hundred forty million, nine hundred eighty-eight thousand, seven hundred four".