340455442 has 8 divisors (see below), whose sum is σ = 513936396. Its totient is φ = 169143312.

The previous prime is 340455391. The next prime is 340455443. The reversal of 340455442 is 244554043.

It can be written as a sum of positive squares in 2 ways, for example, as 327646201 + 12809241 = 18101^2 + 3579^2 .

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

It is not an unprimeable number, because it can be changed into a prime (340455443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541813 + ... + 542440.

Almost surely, 2^340455442 is an apocalyptic number.

340455442 is a deficient number, since it is larger than the sum of its proper divisors (173480954).

340455442 is a wasteful number, since it uses less digits than its factorization.

340455442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084412.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 340455442 is about 18451.4346867662. The cubic root of 340455442 is about 698.2647099586.

The spelling of 340455442 in words is "three hundred forty million, four hundred fifty-five thousand, four hundred forty-two".