20634241 has 2 divisors, whose sum is σ = 20634242. Its totient is φ = 20634240.

The previous prime is 20634221. The next prime is 20634259. The reversal of 20634241 is 14243602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15210000 + 5424241 = 3900^2 + 2329^2 .

It is a cyclic number.

It is not a de Polignac number, because 20634241 - 2⁹ = 20633729 is a prime.

It is not a weakly prime, because it can be changed into another prime (20634221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10317120 + 10317121.

It is an arithmetic number, because the mean of its divisors is an integer number (10317121).

Almost surely, 2^20634241 is an apocalyptic number.

It is an amenable number.

20634241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20634241 is an equidigital number, since it uses as much as digits as its factorization.

20634241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20634241 is about 4542.4928178259. The cubic root of 20634241 is about 274.2812791606.

Adding to 20634241 its reverse (14243602), we get a palindrome (34877843).

It can be divided in two parts, 20634 and 241, that multiplied together give a palindrome (4972794).

The spelling of 20634241 in words is "twenty million, six hundred thirty-four thousand, two hundred forty-one".