140342736 has 20 divisors (see below), whose sum is σ = 362552192. Its totient is φ = 46780896.

The previous prime is 140342707. The next prime is 140342737. The reversal of 140342736 is 637243041.

140342736 is digitally balanced in base 2, 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 (140342737) 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, 1461856 + ... + 1461951.

Almost surely, 2^140342736 is an apocalyptic number.

140342736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140342736 is an abundant number, since it is smaller than the sum of its proper divisors (222209456).

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

140342736 is a wasteful number, since it uses less digits than its factorization.

140342736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923818 (or 2923812 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 140342736 is about 11846.6339523090. The cubic root of 140342736 is about 519.6727921766.

Adding to 140342736 its reverse (637243041), we get a palindrome (777585777).

The spelling of 140342736 in words is "one hundred forty million, three hundred forty-two thousand, seven hundred thirty-six".