140340424 has 16 divisors (see below), whose sum is σ = 300729600. Its totient is φ = 60145872.

The previous prime is 140340407. The next prime is 140340427. The reversal of 140340424 is 424043041.

It is a junction number, because it is equal to n+sod(n) for n = 140340395 and 140340404.

It is not an unprimeable number, because it can be changed into a prime (140340427) 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 3 ways as a sum of consecutive naturals, for example, 1252984 + ... + 1253095.

It is an arithmetic number, because the mean of its divisors is an integer number (18795600).

Almost surely, 2^140340424 is an apocalyptic number.

140340424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140340424 is an abundant number, since it is smaller than the sum of its proper divisors (160389176).

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

140340424 is a wasteful number, since it uses less digits than its factorization.

140340424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506092 (or 2506088 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 140340424 is about 11846.5363714463. The cubic root of 140340424 is about 519.6699384721.

Adding to 140340424 its reverse (424043041), we get a palindrome (564383465).

The spelling of 140340424 in words is "one hundred forty million, three hundred forty thousand, four hundred twenty-four".