20435425443140 has 24 divisors (see below), whose sum is σ = 42991439043672. Its totient is φ = 8159494822400.

The previous prime is 20435425443119. The next prime is 20435425443151. The reversal of 20435425443140 is 4134452453402.

It can be written as a sum of positive squares in 4 ways, for example, as 31467921664 + 20403957521476 = 177392^2 + 4517074^2 .

It is a super-2 number, since 2×20435425443140² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917198261 + ... + 917220540.

It is an arithmetic number, because the mean of its divisors is an integer number (1791309960153).

Almost surely, 2^{20435425443140} is an apocalyptic number.

20435425443140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20435425443140 is an abundant number, since it is smaller than the sum of its proper divisors (22556013600532).

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

20435425443140 is a wasteful number, since it uses less digits than its factorization.

20435425443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834419367 (or 1834419365 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 20435425443140 its reverse (4134452453402), we get a palindrome (24569877896542).

The spelling of 20435425443140 in words is "twenty trillion, four hundred thirty-five billion, four hundred twenty-five million, four hundred forty-three thousand, one hundred forty".