340142231 has 8 divisors (see below), whose sum is σ = 399607824. Its totient is φ = 285433920.

The previous prime is 340142219. The next prime is 340142249. The reversal of 340142231 is 132241043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340142231 - 2⁶ = 340142167 is a prime.

It is a super-2 number, since 2×340142231² = 231393474619314722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340142281) 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, 1189166 + ... + 1189451.

It is an arithmetic number, because the mean of its divisors is an integer number (49950978).

Almost surely, 2^340142231 is an apocalyptic number.

340142231 is a deficient number, since it is larger than the sum of its proper divisors (59465593).

340142231 is a wasteful number, since it uses less digits than its factorization.

340142231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378641.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 340142231 is about 18442.9452908151. The cubic root of 340142231 is about 698.0505152232.

Adding to 340142231 its reverse (132241043), we get a palindrome (472383274).

The spelling of 340142231 in words is "three hundred forty million, one hundred forty-two thousand, two hundred thirty-one".