340400140 has 12 divisors (see below), whose sum is σ = 714840336. Its totient is φ = 136160048.

The previous prime is 340400131. The next prime is 340400141. The reversal of 340400140 is 41004043.

It is not an unprimeable number, because it can be changed into a prime (340400141) 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, 8509984 + ... + 8510023.

It is an arithmetic number, because the mean of its divisors is an integer number (59570028).

Almost surely, 2^340400140 is an apocalyptic number.

It is an amenable number.

340400140 is an abundant number, since it is smaller than the sum of its proper divisors (374440196).

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

340400140 is a wasteful number, since it uses less digits than its factorization.

340400140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17020016 (or 17020014 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 340400140 is about 18449.9360432496. The cubic root of 340400140 is about 698.2269002864.

Adding to 340400140 its reverse (41004043), we get a palindrome (381404183).

The spelling of 340400140 in words is "three hundred forty million, four hundred thousand, one hundred forty".