44004136 has 64 divisors (see below), whose sum is σ = 95515200. Its totient is φ = 18816000.

The previous prime is 44004131. The next prime is 44004139. The reversal of 44004136 is 63140044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (44004131) 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, 109536 + ... + 109936.

It is an arithmetic number, because the mean of its divisors is an integer number (1492425).

Almost surely, 2^44004136 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 44004136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47757600).

44004136 is an abundant number, since it is smaller than the sum of its proper divisors (51511064).

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

44004136 is a wasteful number, since it uses less digits than its factorization.

44004136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 44004136 is about 6633.5613361150. The cubic root of 44004136 is about 353.0458949441.

The spelling of 44004136 in words is "forty-four million, four thousand, one hundred thirty-six".