140019648 has 28 divisors (see below), whose sum is σ = 370469160. Its totient is φ = 46673152.

The previous prime is 140019641. The next prime is 140019689. The reversal of 140019648 is 846910041.

140019648 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 not an unprimeable number, because it can be changed into a prime (140019641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364443 + ... + 364826.

Almost surely, 2^140019648 is an apocalyptic number.

It is an amenable number.

140019648 is an abundant number, since it is smaller than the sum of its proper divisors (230449512).

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

140019648 is an equidigital number, since it uses as much as digits as its factorization.

140019648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729284 (or 729274 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 140019648 is about 11832.9898166102. The cubic root of 140019648 is about 519.2737000308.

Adding to 140019648 its reverse (846910041), we get a palindrome (986929689).

The spelling of 140019648 in words is "one hundred forty million, nineteen thousand, six hundred forty-eight".