44644206404 has 48 divisors (see below), whose sum is σ = 91242170880. Its totient is φ = 18715052160.

The previous prime is 44644206377. The next prime is 44644206407. The reversal of 44644206404 is 40460244644.

It is a super-2 number, since 2×44644206404² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44644206407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439962 + ... + 2458190.

It is an arithmetic number, because the mean of its divisors is an integer number (1900878560).

Almost surely, 2^44644206404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44644206404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45621085440).

44644206404 is an abundant number, since it is smaller than the sum of its proper divisors (46597964476).

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

44644206404 is a wasteful number, since it uses less digits than its factorization.

44644206404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20148 (or 20146 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 44644206404 in words is "forty-four billion, six hundred forty-four million, two hundred six thousand, four hundred four".