140005422 has 24 divisors (see below), whose sum is σ = 314581176. Its totient is φ = 46668312.

The previous prime is 140005409. The next prime is 140005451. The reversal of 140005422 is 224500041.

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 = 140005395 and 140005404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143553 + ... + 144524.

It is an arithmetic number, because the mean of its divisors is an integer number (13107549).

Almost surely, 2^140005422 is an apocalyptic number.

140005422 is an abundant number, since it is smaller than the sum of its proper divisors (174575754).

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

140005422 is an equidigital number, since it uses as much as digits as its factorization.

140005422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288094 (or 288082 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 140005422 is about 11832.3886852993. The cubic root of 140005422 is about 519.2561133612.

Adding to 140005422 its reverse (224500041), we get a palindrome (364505463).

The spelling of 140005422 in words is "one hundred forty million, five thousand, four hundred twenty-two".