20435341340 has 12 divisors (see below), whose sum is σ = 42914216856. Its totient is φ = 8174136528.

The previous prime is 20435341337. The next prime is 20435341361. The reversal of 20435341340 is 4314353402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510883514 + ... + 510883553.

It is an arithmetic number, because the mean of its divisors is an integer number (3576184738).

Almost surely, 2^20435341340 is an apocalyptic number.

20435341340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20435341340 is an abundant number, since it is smaller than the sum of its proper divisors (22478875516).

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

20435341340 is a wasteful number, since it uses less digits than its factorization.

20435341340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021767076 (or 1021767074 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 20435341340 its reverse (4314353402), we get a palindrome (24749694742).

The spelling of 20435341340 in words is "twenty billion, four hundred thirty-five million, three hundred forty-one thousand, three hundred forty".