140020446 has 16 divisors (see below), whose sum is σ = 280212624. Its totient is φ = 46644864.

The previous prime is 140020429. The next prime is 140020451. The reversal of 140020446 is 644020041.

140020446 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 5046 + ... + 17478.

It is an arithmetic number, because the mean of its divisors is an integer number (17513289).

Almost surely, 2^140020446 is an apocalyptic number.

140020446 is an abundant number, since it is smaller than the sum of its proper divisors (140192178).

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

140020446 is a wasteful number, since it uses less digits than its factorization.

140020446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14315.

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

The square root of 140020446 is about 11833.0235358508. The cubic root of 140020446 is about 519.2746865105.

Adding to 140020446 its reverse (644020041), we get a palindrome (784040487).

The spelling of 140020446 in words is "one hundred forty million, twenty thousand, four hundred forty-six".