20202040240402 has 16 divisors (see below), whose sum is σ = 30406977084960. Its totient is φ = 10066396290912.

The previous prime is 20202040240381. The next prime is 20202040240427. The reversal of 20202040240402 is 20404204020202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086252 + ... + 6448567.

It is an arithmetic number, because the mean of its divisors is an integer number (1900436067810).

Almost surely, 2^{20202040240402} is an apocalyptic number.

20202040240402 is a deficient number, since it is larger than the sum of its proper divisors (10204936844558).

20202040240402 is a wasteful number, since it uses less digits than its factorization.

20202040240402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539417.

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

Adding to 20202040240402 its reverse (20404204020202), we get a palindrome (40606244260604).

The spelling of 20202040240402 in words is "twenty trillion, two hundred two billion, forty million, two hundred forty thousand, four hundred two".