140440550 has 12 divisors (see below), whose sum is σ = 261219516. Its totient is φ = 56176200.

The previous prime is 140440549. The next prime is 140440561. The reversal of 140440550 is 55044041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1404356 + ... + 1404455.

It is an arithmetic number, because the mean of its divisors is an integer number (21768293).

Almost surely, 2^140440550 is an apocalyptic number.

140440550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140440550 is a deficient number, since it is larger than the sum of its proper divisors (120778966).

140440550 is a wasteful number, since it uses less digits than its factorization.

140440550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808823 (or 2808818 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 140440550 is about 11850.7615789029. The cubic root of 140440550 is about 519.7934954191.

Adding to 140440550 its reverse (55044041), we get a palindrome (195484591).

The spelling of 140440550 in words is "one hundred forty million, four hundred forty thousand, five hundred fifty".