20144421330 has 64 divisors (see below), whose sum is σ = 53635737600. Its totient is φ = 4800720320.

The previous prime is 20144421307. The next prime is 20144421343. The reversal of 20144421330 is 3312444102.

It is a self number, because there is not a number n which added to its sum of digits gives 20144421330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497850 + ... + 536789.

It is an arithmetic number, because the mean of its divisors is an integer number (838058400).

Almost surely, 2^20144421330 is an apocalyptic number.

20144421330 is an abundant number, since it is smaller than the sum of its proper divisors (33491316270).

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

20144421330 is a wasteful number, since it uses less digits than its factorization.

20144421330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034719.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20144421330 its reverse (3312444102), we get a palindrome (23456865432).

The spelling of 20144421330 in words is "twenty billion, one hundred forty-four million, four hundred twenty-one thousand, three hundred thirty".