340205142 has 16 divisors (see below), whose sum is σ = 681378480. Its totient is φ = 113240352.

The previous prime is 340205137. The next prime is 340205143. The reversal of 340205142 is 241502043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340205143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35733 + ... + 44240.

It is an arithmetic number, because the mean of its divisors is an integer number (42586155).

Almost surely, 2^340205142 is an apocalyptic number.

340205142 is an abundant number, since it is smaller than the sum of its proper divisors (341173338).

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

340205142 is a wasteful number, since it uses less digits than its factorization.

340205142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80687.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 340205142 is about 18444.6507692610. The cubic root of 340205142 is about 698.0935485436.

Adding to 340205142 its reverse (241502043), we get a palindrome (581707185).

The spelling of 340205142 in words is "three hundred forty million, two hundred five thousand, one hundred forty-two".