340340231 has 12 divisors (see below), whose sum is σ = 431898120. Its totient is φ = 265199760.

The previous prime is 340340219. The next prime is 340340267. The reversal of 340340231 is 132043043.

It is a de Polignac number, because none of the positive numbers 2^k-340340231 is a prime.

It is a super-2 number, since 2×340340231² = 231662945674266722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340340431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315176 + ... + 316253.

It is an arithmetic number, because the mean of its divisors is an integer number (35991510).

Almost surely, 2^340340231 is an apocalyptic number.

340340231 is a deficient number, since it is larger than the sum of its proper divisors (91557889).

340340231 is a wasteful number, since it uses less digits than its factorization.

340340231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631454 (or 631447 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 340340231 is about 18448.3124160450. The cubic root of 340340231 is about 698.1859362124.

Adding to 340340231 its reverse (132043043), we get a palindrome (472383274).

It can be divided in two parts, 3403 and 40231, that added together give a palindrome (43634).

The spelling of 340340231 in words is "three hundred forty million, three hundred forty thousand, two hundred thirty-one".