44065620 has 72 divisors (see below), whose sum is σ = 138631584. Its totient is φ = 11749536.

The previous prime is 44065603. The next prime is 44065621. The reversal of 44065620 is 2656044.

It is a happy number.

44065620 is a `hidden beast` number, since 4 + 4 + 0 + 656 + 2 + 0 = 666.

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 (44065621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327 + ... + 9393.

Almost surely, 2^44065620 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 44065620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69315792).

44065620 is an abundant number, since it is smaller than the sum of its proper divisors (94565964).

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

44065620 is a wasteful number, since it uses less digits than its factorization.

44065620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091 (or 9077 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 44065620 is about 6638.1940315119. The cubic root of 44065620 is about 353.2102474639.

The spelling of 44065620 in words is "forty-four million, sixty-five thousand, six hundred twenty".