20204242402 has 8 divisors (see below), whose sum is σ = 30307430736. Its totient is φ = 10101765492.

The previous prime is 20204242397. The next prime is 20204242403. The reversal of 20204242402 is 20424240202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20204242402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20204242403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100048 + ... + 224539.

It is an arithmetic number, because the mean of its divisors is an integer number (3788428842).

Almost surely, 2^20204242402 is an apocalyptic number.

20204242402 is a deficient number, since it is larger than the sum of its proper divisors (10103188334).

20204242402 is a wasteful number, since it uses less digits than its factorization.

20204242402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355712.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20204242402 its reverse (20424240202), we get a palindrome (40628482604).

The spelling of 20204242402 in words is "twenty billion, two hundred four million, two hundred forty-two thousand, four hundred two".