44720220 has 24 divisors (see below), whose sum is σ = 125216784. Its totient is φ = 11925376.

The previous prime is 44720219. The next prime is 44720261. The reversal of 44720220 is 2202744.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372609 + ... + 372728.

It is an arithmetic number, because the mean of its divisors is an integer number (5217366).

Almost surely, 2^44720220 is an apocalyptic number.

It is an amenable number.

44720220 is an abundant number, since it is smaller than the sum of its proper divisors (80496564).

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

44720220 is a wasteful number, since it uses less digits than its factorization.

44720220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745349 (or 745347 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 44720220 is about 6687.3178479866. The cubic root of 44720220 is about 354.9506510785.

Adding to 44720220 its reverse (2202744), we get a palindrome (46922964).

The spelling of 44720220 in words is "forty-four million, seven hundred twenty thousand, two hundred twenty".