1440420114 has 64 divisors (see below), whose sum is σ = 3397386240. Its totient is φ = 398623680.

The previous prime is 1440420089. The next prime is 1440420131. The reversal of 1440420114 is 4110240441.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171759 + ... + 179949.

It is an arithmetic number, because the mean of its divisors is an integer number (53084160).

Almost surely, 2^1440420114 is an apocalyptic number.

1440420114 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440420114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698693120).

1440420114 is an abundant number, since it is smaller than the sum of its proper divisors (1956966126).

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

1440420114 is a wasteful number, since it uses less digits than its factorization.

1440420114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1440420114 is about 37952.8670063277. The cubic root of 1440420114 is about 1129.3530413156.

Adding to 1440420114 its reverse (4110240441), we get a palindrome (5550660555).

The spelling of 1440420114 in words is "one billion, four hundred forty million, four hundred twenty thousand, one hundred fourteen".