44101638 has 64 divisors (see below), whose sum is σ = 118609920. Its totient is φ = 11857536.

The previous prime is 44101637. The next prime is 44101643. The reversal of 44101638 is 83610144.

It is a super-3 number, since 3×44101638³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44101637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2995 + ... + 9857.

It is an arithmetic number, because the mean of its divisors is an integer number (1853280).

Almost surely, 2^44101638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44101638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59304960).

44101638 is an abundant number, since it is smaller than the sum of its proper divisors (74508282).

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

44101638 is a wasteful number, since it uses less digits than its factorization.

44101638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898 (or 6892 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 44101638 is about 6640.9064140372. The cubic root of 44101638 is about 353.3064559675.

The spelling of 44101638 in words is "forty-four million, one hundred one thousand, six hundred thirty-eight".