444618141 has 16 divisors (see below), whose sum is σ = 651007488. Its totient is φ = 267678000.

The previous prime is 444618133. The next prime is 444618149. The reversal of 444618141 is 141816444.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (444618133) and next prime (444618149).

It is not a de Polignac number, because 444618141 - 2³ = 444618133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444618149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39631 + ... + 49596.

It is an arithmetic number, because the mean of its divisors is an integer number (40687968).

Almost surely, 2^444618141 is an apocalyptic number.

It is an amenable number.

444618141 is a deficient number, since it is larger than the sum of its proper divisors (206389347).

444618141 is a wasteful number, since it uses less digits than its factorization.

444618141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89392.

The product of its digits is 12288, while the sum is 33.

The square root of 444618141 is about 21085.9702408971. The cubic root of 444618141 is about 763.2422318810.

The spelling of 444618141 in words is "four hundred forty-four million, six hundred eighteen thousand, one hundred forty-one".