444226620 has 48 divisors (see below), whose sum is σ = 1244748960. Its totient is φ = 118373376.

The previous prime is 444226619. The next prime is 444226639. The reversal of 444226620 is 26622444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161416 + ... + 164144.

It is an arithmetic number, because the mean of its divisors is an integer number (25932270).

Almost surely, 2^444226620 is an apocalyptic number.

It is an amenable number.

444226620 is an abundant number, since it is smaller than the sum of its proper divisors (800522340).

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

444226620 is a wasteful number, since it uses less digits than its factorization.

444226620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454 (or 5452 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 444226620 is about 21076.6842743350. The cubic root of 444226620 is about 763.0181346237.

The spelling of 444226620 in words is "four hundred forty-four million, two hundred twenty-six thousand, six hundred twenty".