20400050110 has 32 divisors (see below), whose sum is σ = 40989877632. Its totient is φ = 7245682080.

The previous prime is 20400050081. The next prime is 20400050113. The reversal of 20400050110 is 1105000402.

It is a super-2 number, since 2×20400050110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400050113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2151724 + ... + 2161183.

It is an arithmetic number, because the mean of its divisors is an integer number (1280933676).

Almost surely, 2^20400050110 is an apocalyptic number.

20400050110 is an abundant number, since it is smaller than the sum of its proper divisors (20589827522).

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

20400050110 is a wasteful number, since it uses less digits than its factorization.

20400050110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312968.

The product of its (nonzero) digits is 40, while the sum is 13.

Adding to 20400050110 its reverse (1105000402), we get a palindrome (21505050512).

The spelling of 20400050110 in words is "twenty billion, four hundred million, fifty thousand, one hundred ten".