20002240291 has 24 divisors (see below), whose sum is σ = 23166259200. Its totient is φ = 17209566000.

The previous prime is 20002240289. The next prime is 20002240337. The reversal of 20002240291 is 19204220002.

It is not a de Polignac number, because 20002240291 - 2¹ = 20002240289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002240201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2642370 + ... + 2649928.

It is an arithmetic number, because the mean of its divisors is an integer number (965260800).

Almost surely, 2^20002240291 is an apocalyptic number.

20002240291 is a deficient number, since it is larger than the sum of its proper divisors (3164018909).

20002240291 is a wasteful number, since it uses less digits than its factorization.

20002240291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751 (or 8740 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20002240291 its reverse (19204220002), we get a palindrome (39206460293).

The spelling of 20002240291 in words is "twenty billion, two million, two hundred forty thousand, two hundred ninety-one".