44402020 has 24 divisors (see below), whose sum is σ = 100417464. Its totient is φ = 16394496.

The previous prime is 44402009. The next prime is 44402023. The reversal of 44402020 is 2020444.

It can be written as a sum of positive squares in 4 ways, for example, as 206116 + 44195904 = 454^2 + 6648^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44401985 and 44402003.

It is not an unprimeable number, because it can be changed into a prime (44402023) by changing a digit.

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, 85129 + ... + 85648.

It is an arithmetic number, because the mean of its divisors is an integer number (4184061).

Almost surely, 2^44402020 is an apocalyptic number.

It is an amenable number.

44402020 is an abundant number, since it is smaller than the sum of its proper divisors (56015444).

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

44402020 is a wasteful number, since it uses less digits than its factorization.

44402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170799 (or 170797 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 44402020 is about 6663.4840736660. The cubic root of 44402020 is about 354.1067804319.

Adding to 44402020 its reverse (2020444), we get a palindrome (46422464).

It can be divided in two parts, 444020 and 20, that multiplied together give a square (8880400 = 2980²).

The spelling of 44402020 in words is "forty-four million, four hundred two thousand, twenty".