340649432 has 8 divisors (see below), whose sum is σ = 638717700. Its totient is φ = 170324712.

The previous prime is 340649431. The next prime is 340649447. The reversal of 340649432 is 234946043.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 340649392 and 340649401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340649431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21290582 + ... + 21290597.

Almost surely, 2^340649432 is an apocalyptic number.

It is an amenable number.

340649432 is a deficient number, since it is larger than the sum of its proper divisors (298068268).

340649432 is a wasteful number, since it uses less digits than its factorization.

340649432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42581185 (or 42581181 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 340649432 is about 18456.6907109590. The cubic root of 340649432 is about 698.3973074883.

The spelling of 340649432 in words is "three hundred forty million, six hundred forty-nine thousand, four hundred thirty-two".