14004021444 has 72 divisors (see below), whose sum is σ = 38210231808. Its totient is φ = 3980168640.

The previous prime is 14004021413. The next prime is 14004021457. The reversal of 14004021444 is 44412040041.

It is a happy number.

It is a super-2 number, since 2×14004021444² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49962 + ... + 174654.

It is an arithmetic number, because the mean of its divisors is an integer number (530697664).

Almost surely, 2^14004021444 is an apocalyptic number.

14004021444 is a gapful number since it is divisible by the number (14) 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 14004021444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19105115904).

14004021444 is an abundant number, since it is smaller than the sum of its proper divisors (24206210364).

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

14004021444 is a wasteful number, since it uses less digits than its factorization.

14004021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124905 (or 124896 counting only the distinct ones).

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

Adding to 14004021444 its reverse (44412040041), we get a palindrome (58416061485).

The spelling of 14004021444 in words is "fourteen billion, four million, twenty-one thousand, four hundred forty-four".