1014442440 has 128 divisors (see below), whose sum is σ = 3328128000. Its totient is φ = 245323520.

The previous prime is 1014442421. The next prime is 1014442441. The reversal of 1014442440 is 442444101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1014442440.

It is not an unprimeable number, because it can be changed into a prime (1014442441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 790039 + ... + 791321.

It is an arithmetic number, because the mean of its divisors is an integer number (26001000).

Almost surely, 2^1014442440 is an apocalyptic number.

1014442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1014442440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664064000).

1014442440 is an abundant number, since it is smaller than the sum of its proper divisors (2313685560).

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

1014442440 is a wasteful number, since it uses less digits than its factorization.

1014442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1014442440 is about 31850.3130282891. The cubic root of 1014442440 is about 1004.7911548414.

Adding to 1014442440 its reverse (442444101), we get a palindrome (1456886541).

The spelling of 1014442440 in words is "one billion, fourteen million, four hundred forty-two thousand, four hundred forty".