140400850 has 12 divisors (see below), whose sum is σ = 261145674. Its totient is φ = 56160320.

The previous prime is 140400847. The next prime is 140400859. The reversal of 140400850 is 58004041.

It can be written as a sum of positive squares in 3 ways, for example, as 91833889 + 48566961 = 9583^2 + 6969^2 .

It is not an unprimeable number, because it can be changed into a prime (140400859) 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 in 5 ways as a sum of consecutive naturals, for example, 1403959 + ... + 1404058.

Almost surely, 2^140400850 is an apocalyptic number.

140400850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140400850 is a deficient number, since it is larger than the sum of its proper divisors (120744824).

140400850 is a wasteful number, since it uses less digits than its factorization.

140400850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808029 (or 2808024 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 140400850 is about 11849.0864626772. The cubic root of 140400850 is about 519.7445120674.

Adding to 140400850 its reverse (58004041), we get a palindrome (198404891).

The spelling of 140400850 in words is "one hundred forty million, four hundred thousand, eight hundred fifty".