20019000430 has 32 divisors (see below), whose sum is σ = 42333889248. Its totient is φ = 6719664000.

The previous prime is 20019000409. The next prime is 20019000431. The reversal of 20019000430 is 3400091002.

It is a junction number, because it is equal to n+sod(n) for n = 20019000398 and 20019000407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20019000431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6998221 + ... + 7001080.

It is an arithmetic number, because the mean of its divisors is an integer number (1322934039).

Almost surely, 2^20019000430 is an apocalyptic number.

20019000430 is an abundant number, since it is smaller than the sum of its proper divisors (22314888818).

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

20019000430 is a wasteful number, since it uses less digits than its factorization.

20019000430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13999332.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20019000430 its reverse (3400091002), we get a palindrome (23419091432).

The spelling of 20019000430 in words is "twenty billion, nineteen million, four hundred thirty", and thus it is an aban number.