20044357 has 2 divisors, whose sum is σ = 20044358. Its totient is φ = 20044356.

The previous prime is 20044351. The next prime is 20044361. The reversal of 20044357 is 75344002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17715681 + 2328676 = 4209^2 + 1526^2 .

It is a cyclic number.

It is not a de Polignac number, because 20044357 - 2¹⁹ = 19520069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20044351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022178 + 10022179.

It is an arithmetic number, because the mean of its divisors is an integer number (10022179).

Almost surely, 2^20044357 is an apocalyptic number.

It is an amenable number.

20044357 is a deficient number, since it is larger than the sum of its proper divisors (1).

20044357 is an equidigital number, since it uses as much as digits as its factorization.

20044357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20044357 is about 4477.0924716829. The cubic root of 20044357 is about 271.6422858586.

Adding to 20044357 its reverse (75344002), we get a palindrome (95388359).

The spelling of 20044357 in words is "twenty million, forty-four thousand, three hundred fifty-seven".