44745820 has 36 divisors (see below), whose sum is σ = 109310040. Its totient is φ = 15341088.

The previous prime is 44745797. The next prime is 44745823. The reversal of 44745820 is 2854744.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44745823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21850 + ... + 23809.

It is an arithmetic number, because the mean of its divisors is an integer number (3036390).

Almost surely, 2^44745820 is an apocalyptic number.

It is an amenable number.

44745820 is an abundant number, since it is smaller than the sum of its proper divisors (64564220).

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

44745820 is a wasteful number, since it uses less digits than its factorization.

44745820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45682 (or 45673 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 44745820 is about 6689.2316449649. The cubic root of 44745820 is about 355.0183684207.

The spelling of 44745820 in words is "forty-four million, seven hundred forty-five thousand, eight hundred twenty".