44729220 has 48 divisors (see below), whose sum is σ = 126096768. Its totient is φ = 11846400.

The previous prime is 44729213. The next prime is 44729221. The reversal of 44729220 is 2292744.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (44729221) 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, 6592 + ... + 11528.

It is an arithmetic number, because the mean of its divisors is an integer number (2627016).

Almost surely, 2^44729220 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 44729220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63048384).

44729220 is an abundant number, since it is smaller than the sum of its proper divisors (81367548).

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

44729220 is a wasteful number, since it uses less digits than its factorization.

44729220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100 (or 5098 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 44729220 is about 6687.9907296586. The cubic root of 44729220 is about 354.9744609016.

The spelling of 44729220 in words is "forty-four million, seven hundred twenty-nine thousand, two hundred twenty".