1444354872 has 32 divisors (see below), whose sum is σ = 3629608080. Its totient is φ = 478955520.

The previous prime is 1444354837. The next prime is 1444354909. The reversal of 1444354872 is 2784534441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151279 + ... + 160542.

Almost surely, 2^1444354872 is an apocalyptic number.

1444354872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1444354872 is an abundant number, since it is smaller than the sum of its proper divisors (2185253208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444354872 is a wasteful number, since it uses less digits than its factorization.

1444354872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312023 (or 312019 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 1444354872 is about 38004.6690815747. The cubic root of 1444354872 is about 1130.3804477705.

The spelling of 1444354872 in words is "one billion, four hundred forty-four million, three hundred fifty-four thousand, eight hundred seventy-two".