20402210433 has 16 divisors (see below), whose sum is σ = 29806684416. Its totient is φ = 12310500240.

The previous prime is 20402210429. The next prime is 20402210497. The reversal of 20402210433 is 33401220402.

It is not a de Polignac number, because 20402210433 - 2² = 20402210429 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20402210533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1354291 + ... + 1369272.

It is an arithmetic number, because the mean of its divisors is an integer number (1862917776).

Almost surely, 2^20402210433 is an apocalyptic number.

It is an amenable number.

20402210433 is a deficient number, since it is larger than the sum of its proper divisors (9404473983).

20402210433 is a wasteful number, since it uses less digits than its factorization.

20402210433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723804.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20402210433 its reverse (33401220402), we get a palindrome (53803430835).

The spelling of 20402210433 in words is "twenty billion, four hundred two million, two hundred ten thousand, four hundred thirty-three".