20020442304 has 28 divisors (see below), whose sum is σ = 52970754104. Its totient is φ = 6673480704.

The previous prime is 20020442303. The next prime is 20020442317. The reversal of 20020442304 is 40324402002.

It is a super-2 number, since 2×20020442304² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20020442303) 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, 52136377 + ... + 52136760.

Almost surely, 2^20020442304 is an apocalyptic number.

20020442304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20020442304 is an abundant number, since it is smaller than the sum of its proper divisors (32950311800).

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

20020442304 is a wasteful number, since it uses less digits than its factorization.

20020442304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104273152 (or 104273142 counting only the distinct ones).

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

Adding to 20020442304 its reverse (40324402002), we get a palindrome (60344844306).

The spelling of 20020442304 in words is "twenty billion, twenty million, four hundred forty-two thousand, three hundred four".