444041381 has 48 divisors (see below), whose sum is σ = 576201600. Its totient is φ = 339558912.

The previous prime is 444041371. The next prime is 444041393. The reversal of 444041381 is 183140444.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-444041381 is a prime.

It is a super-2 number, since 2×444041381² = 394345496080774322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444041371) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1905641 + ... + 1905873.

It is an arithmetic number, because the mean of its divisors is an integer number (12004200).

Almost surely, 2^444041381 is an apocalyptic number.

It is an amenable number.

444041381 is a deficient number, since it is larger than the sum of its proper divisors (132160219).

444041381 is a wasteful number, since it uses less digits than its factorization.

444041381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 444041381 is about 21072.2894105031. The cubic root of 444041381 is about 762.9120623621.

The spelling of 444041381 in words is "four hundred forty-four million, forty-one thousand, three hundred eighty-one".