444139834 has 8 divisors (see below), whose sum is σ = 666937440. Its totient is φ = 221827356.

The previous prime is 444139831. The next prime is 444139837. The reversal of 444139834 is 438931444.

It is an interprime number because it is at equal distance from previous prime (444139831) and next prime (444139837).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×444139834³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (444139831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118984 + ... + 122659.

It is an arithmetic number, because the mean of its divisors is an integer number (83367180).

Almost surely, 2^444139834 is an apocalyptic number.

444139834 is a deficient number, since it is larger than the sum of its proper divisors (222797606).

444139834 is a wasteful number, since it uses less digits than its factorization.

444139834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242564.

The product of its digits is 165888, while the sum is 40.

The square root of 444139834 is about 21074.6253584732. The cubic root of 444139834 is about 762.9684425659.

The spelling of 444139834 in words is "four hundred forty-four million, one hundred thirty-nine thousand, eight hundred thirty-four".