340140424 has 16 divisors (see below), whose sum is σ = 686822220. Its totient is φ = 156987840.

The previous prime is 340140421. The next prime is 340140431. The reversal of 340140424 is 424041043.

It can be written as a sum of positive squares in 2 ways, for example, as 320052100 + 20088324 = 17890^2 + 4482^2 .

It is a junction number, because it is equal to n+sod(n) for n = 340140395 and 340140404.

It is not an unprimeable number, because it can be changed into a prime (340140421) 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, 1635187 + ... + 1635394.

Almost surely, 2^340140424 is an apocalyptic number.

It is an amenable number.

340140424 is an abundant number, since it is smaller than the sum of its proper divisors (346681796).

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

340140424 is a wasteful number, since it uses less digits than its factorization.

340140424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270600 (or 3270596 counting only the distinct ones).

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

The square root of 340140424 is about 18442.8963018285. The cubic root of 340140424 is about 698.0492790937.

Adding to 340140424 its reverse (424041043), we get a palindrome (764181467).

The spelling of 340140424 in words is "three hundred forty million, one hundred forty thousand, four hundred twenty-four".