1440004124 has 24 divisors (see below), whose sum is σ = 2776971120. Its totient is φ = 649160064.

The previous prime is 1440004109. The next prime is 1440004177. The reversal of 1440004124 is 4214000441.

It is a happy number.

It is a super-2 number, since 2×1440004124² = 4147223754274014752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1440004096 and 1440004105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319769 + ... + 324240.

It is an arithmetic number, because the mean of its divisors is an integer number (115707130).

Almost surely, 2^1440004124 is an apocalyptic number.

It is an amenable number.

1440004124 is a deficient number, since it is larger than the sum of its proper divisors (1336966996).

1440004124 is a wasteful number, since it uses less digits than its factorization.

1440004124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644069 (or 644067 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1440004124 is about 37947.3862604528. The cubic root of 1440004124 is about 1129.2443126653.

Adding to 1440004124 its reverse (4214000441), we get a palindrome (5654004565).

The spelling of 1440004124 in words is "one billion, four hundred forty million, four thousand, one hundred twenty-four".