140323444 has 6 divisors (see below), whose sum is σ = 245566034. Its totient is φ = 70161720.

The previous prime is 140323429. The next prime is 140323451. The reversal of 140323444 is 444323041.

It can be written as a sum of positive squares in only one way, i.e., 139948900 + 374544 = 11830^2 + 612^2 .

It is a super-2 number, since 2×140323444² = 39381337872042272, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 17540427 + ... + 17540434.

Almost surely, 2^140323444 is an apocalyptic number.

It is an amenable number.

140323444 is a deficient number, since it is larger than the sum of its proper divisors (105242590).

140323444 is a wasteful number, since it uses less digits than its factorization.

140323444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35080865 (or 35080863 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 140323444 is about 11845.8196845976. The cubic root of 140323444 is about 519.6489790764.

Adding to 140323444 its reverse (444323041), we get a palindrome (584646485).

The spelling of 140323444 in words is "one hundred forty million, three hundred twenty-three thousand, four hundred forty-four".