20403414340 has 24 divisors (see below), whose sum is σ = 42851860632. Its totient is φ = 8160472320.

The previous prime is 20403414223. The next prime is 20403414341. The reversal of 20403414340 is 4341430402.

It can be written as a sum of positive squares in 4 ways, for example, as 84052224 + 20319362116 = 9168^2 + 142546^2 .

It is not an unprimeable number, because it can be changed into a prime (20403414341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149920 + ... + 251560.

It is an arithmetic number, because the mean of its divisors is an integer number (1785494193).

Almost surely, 2^20403414340 is an apocalyptic number.

20403414340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20403414340 is an abundant number, since it is smaller than the sum of its proper divisors (22448446292).

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

20403414340 is a wasteful number, since it uses less digits than its factorization.

20403414340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111687 (or 111685 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20403414340 its reverse (4341430402), we get a palindrome (24744844742).

The spelling of 20403414340 in words is "twenty billion, four hundred three million, four hundred fourteen thousand, three hundred forty".