1401440224 has 24 divisors (see below), whose sum is σ = 2759920128. Its totient is φ = 700508160.

The previous prime is 1401440221. The next prime is 1401440269. The reversal of 1401440224 is 4220441041.

It is a junction number, because it is equal to n+sod(n) for n = 1401440195 and 1401440204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401440221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199329 + ... + 206239.

It is an arithmetic number, because the mean of its divisors is an integer number (114996672).

Almost surely, 2^1401440224 is an apocalyptic number.

It is an amenable number.

1401440224 is a deficient number, since it is larger than the sum of its proper divisors (1358479904).

1401440224 is an equidigital number, since it uses as much as digits as its factorization.

1401440224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13258 (or 13250 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1401440224 is about 37435.8147233368. The cubic root of 1401440224 is about 1119.0724207704.

Adding to 1401440224 its reverse (4220441041), we get a palindrome (5621881265).

The spelling of 1401440224 in words is "one billion, four hundred one million, four hundred forty thousand, two hundred twenty-four".