340231646 has 4 divisors (see below), whose sum is σ = 510347472. Its totient is φ = 170115822.

The previous prime is 340231643. The next prime is 340231667. The reversal of 340231646 is 646132043.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340231643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85057910 + ... + 85057913.

It is an arithmetic number, because the mean of its divisors is an integer number (127586868).

Almost surely, 2^340231646 is an apocalyptic number.

340231646 is a deficient number, since it is larger than the sum of its proper divisors (170115826).

340231646 is a wasteful number, since it uses less digits than its factorization.

340231646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170115825.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 340231646 is about 18445.3692291588. The cubic root of 340231646 is about 698.1116766166. Note that the first 3 decimals are identical.

Adding to 340231646 its reverse (646132043), we get a palindrome (986363689).

The spelling of 340231646 in words is "three hundred forty million, two hundred thirty-one thousand, six hundred forty-six".