340632469 has 8 divisors (see below), whose sum is σ = 349496280. Its totient is φ = 331795200.

The previous prime is 340632449. The next prime is 340632473. The reversal of 340632469 is 964236043.

It can be written as a sum of positive squares in 4 ways, for example, as 113678244 + 226954225 = 10662^2 + 15065^2 .

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 340632469 - 2¹⁷ = 340501397 is a prime.

It is a super-2 number, since 2×340632469² = 232060957874071922, 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 (340632449) 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, 20817 + ... + 33385.

It is an arithmetic number, because the mean of its divisors is an integer number (43687035).

Almost surely, 2^340632469 is an apocalyptic number.

It is an amenable number.

340632469 is a deficient number, since it is larger than the sum of its proper divisors (8863811).

340632469 is a wasteful number, since it uses less digits than its factorization.

340632469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13271.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 340632469 is about 18456.2311699870. The cubic root of 340632469 is about 698.3857148175.

The spelling of 340632469 in words is "three hundred forty million, six hundred thirty-two thousand, four hundred sixty-nine".