1444331404 has 24 divisors (see below), whose sum is σ = 2601569600. Its totient is φ = 701326080.

The previous prime is 1444331381. The next prime is 1444331419. The reversal of 1444331404 is 4041334441.

It is a happy number.

It is a super-2 number, since 2×1444331404² = 4172186409161222432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18189 + ... + 56740.

Almost surely, 2^1444331404 is an apocalyptic number.

It is an amenable number.

1444331404 is a deficient number, since it is larger than the sum of its proper divisors (1157238196).

1444331404 is a wasteful number, since it uses less digits than its factorization.

1444331404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75073 (or 75071 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1444331404 is about 38004.3603287833. The cubic root of 1444331404 is about 1130.3743255650.

Adding to 1444331404 its reverse (4041334441), we get a palindrome (5485665845).

The spelling of 1444331404 in words is "one billion, four hundred forty-four million, three hundred thirty-one thousand, four hundred four".