340434446 has 8 divisors (see below), whose sum is σ = 557074584. Its totient is φ = 154742920.

The previous prime is 340434443. The next prime is 340434461. The reversal of 340434446 is 644434043.

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

It is a super-2 number, since 2×340434446² = 231791224046653832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340434443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7737125 + ... + 7737168.

It is an arithmetic number, because the mean of its divisors is an integer number (69634323).

Almost surely, 2^340434446 is an apocalyptic number.

340434446 is a deficient number, since it is larger than the sum of its proper divisors (216640138).

340434446 is a wasteful number, since it uses less digits than its factorization.

340434446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474306.

The product of its (nonzero) digits is 55296, while the sum is 32.

The square root of 340434446 is about 18450.8657249464. The cubic root of 340434446 is about 698.2503555915.

Adding to 340434446 its reverse (644434043), we get a palindrome (984868489).

The spelling of 340434446 in words is "three hundred forty million, four hundred thirty-four thousand, four hundred forty-six".