20040050030 has 128 divisors (see below), whose sum is σ = 48879452160. Its totient is φ = 5712560640.

The previous prime is 20040049979. The next prime is 20040050033. The reversal of 20040050030 is 3005004002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20040049987 and 20040050014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040050033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1081907 + ... + 1100273.

It is an arithmetic number, because the mean of its divisors is an integer number (381870720).

Almost surely, 2^20040050030 is an apocalyptic number.

20040050030 is an abundant number, since it is smaller than the sum of its proper divisors (28839402130).

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

20040050030 is a wasteful number, since it uses less digits than its factorization.

20040050030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18514.

The product of its (nonzero) digits is 120, while the sum is 14.

Adding to 20040050030 its reverse (3005004002), we get a palindrome (23045054032).

The spelling of 20040050030 in words is "twenty billion, forty million, fifty thousand, thirty".