20444330 has 16 divisors (see below), whose sum is σ = 36854784. Its totient is φ = 8165520.

The previous prime is 20444329. The next prime is 20444341. The reversal of 20444330 is 3344402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8879 + ... + 10941.

It is an arithmetic number, because the mean of its divisors is an integer number (2303424).

Almost surely, 2^20444330 is an apocalyptic number.

20444330 is a deficient number, since it is larger than the sum of its proper divisors (16410454).

20444330 is a wasteful number, since it uses less digits than its factorization.

20444330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 20444330 is about 4521.5406666312. The cubic root of 20444330 is about 273.4372184269.

Adding to 20444330 its reverse (3344402), we get a palindrome (23788732).

The spelling of 20444330 in words is "twenty million, four hundred forty-four thousand, three hundred thirty".