1401444004 has 12 divisors (see below), whose sum is σ = 2559158784. Its totient is φ = 670255784.

The previous prime is 1401443993. The next prime is 1401444019. The reversal of 1401444004 is 4004441041.

It is a happy number.

It is an unprimeable number.

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, 7616452 + ... + 7616635.

It is an arithmetic number, because the mean of its divisors is an integer number (213263232).

Almost surely, 2^1401444004 is an apocalyptic number.

It is an amenable number.

1401444004 is a deficient number, since it is larger than the sum of its proper divisors (1157714780).

1401444004 is a wasteful number, since it uses less digits than its factorization.

1401444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15233114 (or 15233112 counting only the distinct ones).

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

The square root of 1401444004 is about 37435.8652097157. The cubic root of 1401444004 is about 1119.0734268997.

Adding to 1401444004 its reverse (4004441041), we get a palindrome (5405885045).

The spelling of 1401444004 in words is "one billion, four hundred one million, four hundred forty-four thousand, four".