20342200040 has 64 divisors (see below), whose sum is σ = 47785368960. Its totient is φ = 7778960640.

The previous prime is 20342200007. The next prime is 20342200069. The reversal of 20342200040 is 4000224302.

It is a junction number, because it is equal to n+sod(n) for n = 20342199991 and 20342200018.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2154530 + ... + 2163950.

It is an arithmetic number, because the mean of its divisors is an integer number (746646390).

Almost surely, 2^20342200040 is an apocalyptic number.

20342200040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20342200040 is an abundant number, since it is smaller than the sum of its proper divisors (27443168920).

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

20342200040 is a wasteful number, since it uses less digits than its factorization.

20342200040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11802 (or 11798 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 20342200040 its reverse (4000224302), we get a palindrome (24342424342).

The spelling of 20342200040 in words is "twenty billion, three hundred forty-two million, two hundred thousand, forty".