140344550 has 24 divisors (see below), whose sum is σ = 263634912. Its totient is φ = 55580000.

The previous prime is 140344549. The next prime is 140344553. The reversal of 140344550 is 55443041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140344553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8846 + ... + 18945.

It is an arithmetic number, because the mean of its divisors is an integer number (10984788).

Almost surely, 2^140344550 is an apocalyptic number.

140344550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140344550 is a deficient number, since it is larger than the sum of its proper divisors (123290362).

140344550 is a wasteful number, since it uses less digits than its factorization.

140344550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27904 (or 27899 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 140344550 is about 11846.7105138937. The cubic root of 140344550 is about 519.6750311772.

Adding to 140344550 its reverse (55443041), we get a palindrome (195787591).

The spelling of 140344550 in words is "one hundred forty million, three hundred forty-four thousand, five hundred fifty".