1401097444 has 12 divisors (see below), whose sum is σ = 2452445100. Its totient is φ = 700398848.

The previous prime is 1401097427. The next prime is 1401097459. The reversal of 1401097444 is 4447901041.

It can be written as a sum of positive squares in 2 ways, for example, as 266081344 + 1135016100 = 16312^2 + 33690^2 .

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, 14929 + ... + 55000.

It is an arithmetic number, because the mean of its divisors is an integer number (204370425).

Almost surely, 2^1401097444 is an apocalyptic number.

It is an amenable number.

1401097444 is a deficient number, since it is larger than the sum of its proper divisors (1051347656).

1401097444 is a wasteful number, since it uses less digits than its factorization.

1401097444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74942 (or 74940 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1401097444 is about 37431.2362072107. The cubic root of 1401097444 is about 1118.9811748943.

Adding to 1401097444 its reverse (4447901041), we get a palindrome (5848998485).

The spelling of 1401097444 in words is "one billion, four hundred one million, ninety-seven thousand, four hundred forty-four".