444348870 has 64 divisors (see below), whose sum is σ = 1228455936. Its totient is φ = 100759680.

The previous prime is 444348847. The next prime is 444348889. The reversal of 444348870 is 78843444.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18340 + ... + 35000.

It is an arithmetic number, because the mean of its divisors is an integer number (19194624).

Almost surely, 2^444348870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444348870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614227968).

444348870 is an abundant number, since it is smaller than the sum of its proper divisors (784107066).

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

444348870 is a wasteful number, since it uses less digits than its factorization.

444348870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16805.

The product of its (nonzero) digits is 344064, while the sum is 42.

The square root of 444348870 is about 21079.5841989352. The cubic root of 444348870 is about 763.0881217334.

The spelling of 444348870 in words is "four hundred forty-four million, three hundred forty-eight thousand, eight hundred seventy".