20435000140440 has 48 divisors (see below), whose sum is σ = 66413750457600. Its totient is φ = 5449333370688.

The previous prime is 20435000140409. The next prime is 20435000140523. The reversal of 20435000140440 is 4404100053402.

It is a happy number.

20435000140440 is a `hidden beast` number, since 204 + 3 + 5 + 0 + 0 + 0 + 14 + 0 + 440 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28381944280 + ... + 28381944999.

It is an arithmetic number, because the mean of its divisors is an integer number (1383619801200).

Almost surely, 2^{20435000140440} is an apocalyptic number.

20435000140440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20435000140440 is an abundant number, since it is smaller than the sum of its proper divisors (45978750317160).

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

20435000140440 is a wasteful number, since it uses less digits than its factorization.

20435000140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56763889296 (or 56763889289 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20435000140440 its reverse (4404100053402), we get a palindrome (24839100193842).

The spelling of 20435000140440 in words is "twenty trillion, four hundred thirty-five billion, one hundred forty thousand, four hundred forty".