20034445 has 8 divisors (see below), whose sum is σ = 24627960. Its totient is φ = 15636480.

The previous prime is 20034433. The next prime is 20034451. The reversal of 20034445 is 54443002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 797449 + 19236996 = 893^2 + 4386^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20034445 - 2⁷ = 20034317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48660 + ... + 49069.

It is an arithmetic number, because the mean of its divisors is an integer number (3078495).

Almost surely, 2^20034445 is an apocalyptic number.

It is an amenable number.

20034445 is a deficient number, since it is larger than the sum of its proper divisors (4593515).

20034445 is an equidigital number, since it uses as much as digits as its factorization.

20034445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97775.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20034445 is about 4475.9853663746. The cubic root of 20034445 is about 271.5975024768.

Adding to 20034445 its reverse (54443002), we get a palindrome (74477447).

The spelling of 20034445 in words is "twenty million, thirty-four thousand, four hundred forty-five".