20240221424 has 10 divisors (see below), whose sum is σ = 39215429040. Its totient is φ = 10120110704.

The previous prime is 20240221363. The next prime is 20240221429. The reversal of 20240221424 is 42412204202.

It is a self number, because there is not a number n which added to its sum of digits gives 20240221424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240221429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632506904 + ... + 632506935.

It is an arithmetic number, because the mean of its divisors is an integer number (3921542904).

Almost surely, 2^20240221424 is an apocalyptic number.

It is an amenable number.

20240221424 is a deficient number, since it is larger than the sum of its proper divisors (18975207616).

20240221424 is a wasteful number, since it uses less digits than its factorization.

20240221424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265013847 (or 1265013841 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 20240221424 its reverse (42412204202), we get a palindrome (62652425626).

The spelling of 20240221424 in words is "twenty billion, two hundred forty million, two hundred twenty-one thousand, four hundred twenty-four".