140404122 has 48 divisors (see below), whose sum is σ = 330835752. Its totient is φ = 42854400.

The previous prime is 140404111. The next prime is 140404151. The reversal of 140404122 is 221404041.

140404122 is a `hidden beast` number, since 140 + 404 + 122 = 666.

140404122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 139499721 + 904401 = 11811^2 + 951^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 140404095 and 140404104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5122 + ... + 17522.

Almost surely, 2^140404122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140404122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165417876).

140404122 is an abundant number, since it is smaller than the sum of its proper divisors (190431630).

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

140404122 is a wasteful number, since it uses less digits than its factorization.

140404122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12463 (or 12460 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 140404122 is about 11849.2245315886. The cubic root of 140404122 is about 519.7485495331.

Adding to 140404122 its reverse (221404041), we get a palindrome (361808163).

The spelling of 140404122 in words is "one hundred forty million, four hundred four thousand, one hundred twenty-two".