44646444 has 48 divisors (see below), whose sum is σ = 116924640. Its totient is φ = 14731200.

The previous prime is 44646443. The next prime is 44646451. The reversal of 44646444 is 44464644.

44646444 is a `hidden beast` number, since 4 + 4 + 6 + 4 + 644 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 44646399 and 44646408.

It is not an unprimeable number, because it can be changed into a prime (44646443) 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, 8862 + ... + 12954.

It is an arithmetic number, because the mean of its divisors is an integer number (2435930).

Almost surely, 2^44646444 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 44646444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58462320).

44646444 is an abundant number, since it is smaller than the sum of its proper divisors (72278196).

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

44646444 is a wasteful number, since it uses less digits than its factorization.

44646444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207 (or 4199 counting only the distinct ones).

The product of its digits is 147456, while the sum is 36.

The square root of 44646444 is about 6681.7994582298. The cubic root of 44646444 is about 354.7553534943.

The spelling of 44646444 in words is "forty-four million, six hundred forty-six thousand, four hundred forty-four".