444672018 has 96 divisors (see below), whose sum is σ = 1191730176. Its totient is φ = 121503888.

The previous prime is 444672017. The next prime is 444672023. The reversal of 444672018 is 810276444.

444672018 is a `hidden beast` number, since 4 + 446 + 7 + 201 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444672013) 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, 75405 + ... + 81087.

It is an arithmetic number, because the mean of its divisors is an integer number (12413856).

Almost surely, 2^444672018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444672018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595865088).

444672018 is an abundant number, since it is smaller than the sum of its proper divisors (747058158).

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

444672018 is a wasteful number, since it uses less digits than its factorization.

444672018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730 (or 5718 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 444672018 is about 21087.2477578275. The cubic root of 444672018 is about 763.2730594887.

The spelling of 444672018 in words is "four hundred forty-four million, six hundred seventy-two thousand, eighteen".