1444447458 has 32 divisors (see below), whose sum is σ = 3211924800. Its totient is φ = 481176288.

The previous prime is 1444447429. The next prime is 1444447471. The reversal of 1444447458 is 8547444441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87033 + ... + 102291.

It is an arithmetic number, because the mean of its divisors is an integer number (100372650).

Almost surely, 2^1444447458 is an apocalyptic number.

1444447458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1444447458 is an abundant number, since it is smaller than the sum of its proper divisors (1767477342).

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

1444447458 is a wasteful number, since it uses less digits than its factorization.

1444447458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17023 (or 17017 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 45.

The square root of 1444447458 is about 38005.8871492299. The cubic root of 1444447458 is about 1130.4046004609.

The spelling of 1444447458 in words is "one billion, four hundred forty-four million, four hundred forty-seven thousand, four hundred fifty-eight".