20424210144 has 48 divisors (see below), whose sum is σ = 57737674512. Its totient is φ = 6284371968.

The previous prime is 20424210109. The next prime is 20424210179. The reversal of 20424210144 is 44101242402.

It is an interprime number because it is at equal distance from previous prime (20424210109) and next prime (20424210179).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8181529 + ... + 8184024.

It is an arithmetic number, because the mean of its divisors is an integer number (1202868219).

Almost surely, 2^20424210144 is an apocalyptic number.

20424210144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20424210144 is an abundant number, since it is smaller than the sum of its proper divisors (37313464368).

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

20424210144 is a wasteful number, since it uses less digits than its factorization.

20424210144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16365579 (or 16365571 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20424210144 its reverse (44101242402), we get a palindrome (64525452546).

The spelling of 20424210144 in words is "twenty billion, four hundred twenty-four million, two hundred ten thousand, one hundred forty-four".