20402004202 has 16 divisors (see below), whose sum is σ = 31351272480. Its totient is φ = 9952134192.

The previous prime is 20402004199. The next prime is 20402004209. The reversal of 20402004202 is 20240020402.

It is not an unprimeable number, because it can be changed into a prime (20402004209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64213 + ... + 211960.

It is an arithmetic number, because the mean of its divisors is an integer number (1959454530).

Almost surely, 2^20402004202 is an apocalyptic number.

20402004202 is a deficient number, since it is larger than the sum of its proper divisors (10949268278).

20402004202 is a wasteful number, since it uses less digits than its factorization.

20402004202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277077.

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 20402004202 its reverse (20240020402), we get a palindrome (40642024604).

It can be divided in two parts, 2040200 and 4202, that added together give a palindrome (2044402).

The spelling of 20402004202 in words is "twenty billion, four hundred two million, four thousand, two hundred two".