444021030 has 48 divisors (see below), whose sum is σ = 1194270480. Its totient is φ = 114321984.

The previous prime is 444020999. The next prime is 444021037. The reversal of 444021030 is 30120444.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 444020994 and 444021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444021037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82452 + ... + 87671.

It is an arithmetic number, because the mean of its divisors is an integer number (24880635).

Almost surely, 2^444021030 is an apocalyptic number.

444021030 is an abundant number, since it is smaller than the sum of its proper divisors (750249450).

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

444021030 is a wasteful number, since it uses less digits than its factorization.

444021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170165 (or 170162 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 444021030 is about 21071.8065196129. The cubic root of 444021030 is about 762.9004070966.

Adding to 444021030 its reverse (30120444), we get a palindrome (474141474).

The spelling of 444021030 in words is "four hundred forty-four million, twenty-one thousand, thirty".