20442401430 has 64 divisors (see below), whose sum is σ = 53537068800. Its totient is φ = 4954331520.

The previous prime is 20442401401. The next prime is 20442401431. The reversal of 20442401430 is 3410424402.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20442401430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442401431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1613661 + ... + 1626279.

It is an arithmetic number, because the mean of its divisors is an integer number (836516700).

Almost surely, 2^20442401430 is an apocalyptic number.

20442401430 is an abundant number, since it is smaller than the sum of its proper divisors (33094667370).

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

20442401430 is a wasteful number, since it uses less digits than its factorization.

20442401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17549.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20442401430 its reverse (3410424402), we get a palindrome (23852825832).

The spelling of 20442401430 in words is "twenty billion, four hundred forty-two million, four hundred one thousand, four hundred thirty".