140103444 has 48 divisors (see below), whose sum is σ = 356045760. Its totient is φ = 42620160.

The previous prime is 140103361. The next prime is 140103451. The reversal of 140103444 is 444301041.

It is a super-2 number, since 2×140103444² = 39257950041322272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140103444.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 8839 + ... + 18929.

It is an arithmetic number, because the mean of its divisors is an integer number (7417620).

Almost surely, 2^140103444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140103444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178022880).

140103444 is an abundant number, since it is smaller than the sum of its proper divisors (215942316).

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

140103444 is a wasteful number, since it uses less digits than its factorization.

140103444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10200 (or 10198 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140103444 is about 11836.5300658597. The cubic root of 140103444 is about 519.3772673568.

Adding to 140103444 its reverse (444301041), we get a palindrome (584404485).

The spelling of 140103444 in words is "one hundred forty million, one hundred three thousand, four hundred forty-four".