1401224444 has 12 divisors (see below), whose sum is σ = 2460997224. Its totient is φ = 698082384.

The previous prime is 1401224437. The next prime is 1401224449. The reversal of 1401224444 is 4444221041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401224449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631214 + ... + 633429.

It is an arithmetic number, because the mean of its divisors is an integer number (205083102).

Almost surely, 2^1401224444 is an apocalyptic number.

It is an amenable number.

1401224444 is a deficient number, since it is larger than the sum of its proper divisors (1059772780).

1401224444 is a wasteful number, since it uses less digits than its factorization.

1401224444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264924 (or 1264922 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 1401224444 is about 37432.9326128745. The cubic root of 1401224444 is about 1119.0149832294.

Adding to 1401224444 its reverse (4444221041), we get a palindrome (5845445485).

The spelling of 1401224444 in words is "one billion, four hundred one million, two hundred twenty-four thousand, four hundred forty-four".