21404114118 has 24 divisors (see below), whose sum is σ = 48816401400. Its totient is φ = 6759193824.

The previous prime is 21404114117. The next prime is 21404114159. The reversal of 21404114118 is 81141140412.

It is a super-2 number, since 2×21404114118² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21404114091 and 21404114100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21404114117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31292223 + ... + 31292906.

It is an arithmetic number, because the mean of its divisors is an integer number (2034016725).

Almost surely, 2^21404114118 is an apocalyptic number.

21404114118 is an abundant number, since it is smaller than the sum of its proper divisors (27412287282).

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

21404114118 is a wasteful number, since it uses less digits than its factorization.

21404114118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62585156 (or 62585153 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The spelling of 21404114118 in words is "twenty-one billion, four hundred four million, one hundred fourteen thousand, one hundred eighteen".