140444222 has 4 divisors (see below), whose sum is σ = 210666336. Its totient is φ = 70222110.

The previous prime is 140444221. The next prime is 140444243. The reversal of 140444222 is 222444041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222444041 = 599 ⋅371359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140444221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35111054 + ... + 35111057.

It is an arithmetic number, because the mean of its divisors is an integer number (52666584).

Almost surely, 2^140444222 is an apocalyptic number.

140444222 is a deficient number, since it is larger than the sum of its proper divisors (70222114).

140444222 is an equidigital number, since it uses as much as digits as its factorization.

140444222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70222113.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 140444222 is about 11850.9165046422. The cubic root of 140444222 is about 519.7980256042.

Adding to 140444222 its reverse (222444041), we get a palindrome (362888263).

The spelling of 140444222 in words is "one hundred forty million, four hundred forty-four thousand, two hundred twenty-two".