20434220330 has 8 divisors (see below), whose sum is σ = 36781596612. Its totient is φ = 8173688128.

The previous prime is 20434220329. The next prime is 20434220333. The reversal of 20434220330 is 3302243402.

It can be written as a sum of positive squares in 2 ways, for example, as 20046878569 + 387341761 = 141587^2 + 19681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20434220296 and 20434220305.

It is not an unprimeable number, because it can be changed into a prime (20434220333) 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, 1021711007 + ... + 1021711026.

Almost surely, 2^20434220330 is an apocalyptic number.

20434220330 is a deficient number, since it is larger than the sum of its proper divisors (16347376282).

20434220330 is a wasteful number, since it uses less digits than its factorization.

20434220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043422040.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20434220330 its reverse (3302243402), we get a palindrome (23736463732).

The spelling of 20434220330 in words is "twenty billion, four hundred thirty-four million, two hundred twenty thousand, three hundred thirty".