20420002330 has 64 divisors (see below), whose sum is σ = 45267425280. Its totient is φ = 6458413824.

The previous prime is 20420002327. The next prime is 20420002331. The reversal of 20420002330 is 3320002402.

It is not an unprimeable number, because it can be changed into a prime (20420002331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1594312 + ... + 1607068.

It is an arithmetic number, because the mean of its divisors is an integer number (707303520).

Almost surely, 2^20420002330 is an apocalyptic number.

20420002330 is an abundant number, since it is smaller than the sum of its proper divisors (24847422950).

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

20420002330 is a wasteful number, since it uses less digits than its factorization.

20420002330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14543.

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20420002330 its reverse (3320002402), we get a palindrome (23740004732).

The spelling of 20420002330 in words is "twenty billion, four hundred twenty million, two thousand, three hundred thirty".