1444421404 has 6 divisors (see below), whose sum is σ = 2527737464. Its totient is φ = 722210700.

The previous prime is 1444421399. The next prime is 1444421411. The reversal of 1444421404 is 4041244441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180552672 + ... + 180552679.

Almost surely, 2^1444421404 is an apocalyptic number.

It is an amenable number.

1444421404 is a deficient number, since it is larger than the sum of its proper divisors (1083316060).

1444421404 is a wasteful number, since it uses less digits than its factorization.

1444421404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361105355 (or 361105353 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 1444421404 is about 38005.5443849973. The cubic root of 1444421404 is about 1130.3978039200.

Adding to 1444421404 its reverse (4041244441), we get a palindrome (5485665845).

The spelling of 1444421404 in words is "one billion, four hundred forty-four million, four hundred twenty-one thousand, four hundred four".