20202203442 has 32 divisors (see below), whose sum is σ = 41987750400. Its totient is φ = 6473093760.

The previous prime is 20202203431. The next prime is 20202203491. The reversal of 20202203442 is 24430220202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336763 + ... + 392190.

It is an arithmetic number, because the mean of its divisors is an integer number (1312117200).

Almost surely, 2^20202203442 is an apocalyptic number.

20202203442 is an abundant number, since it is smaller than the sum of its proper divisors (21785546958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20202203442 is a wasteful number, since it uses less digits than its factorization.

20202203442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729138.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20202203442 its reverse (24430220202), we get a palindrome (44632423644).

The spelling of 20202203442 in words is "twenty billion, two hundred two million, two hundred three thousand, four hundred forty-two".