343402474 has 4 divisors (see below), whose sum is σ = 515103714. Its totient is φ = 171701236.

The previous prime is 343402459. The next prime is 343402517. The reversal of 343402474 is 474204343.

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

It can be written as a sum of positive squares in only one way, i.e., 326055249 + 17347225 = 18057^2 + 4165^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85850617 + ... + 85850620.

Almost surely, 2^343402474 is an apocalyptic number.

343402474 is a deficient number, since it is larger than the sum of its proper divisors (171701240).

343402474 is a wasteful number, since it uses less digits than its factorization.

343402474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171701239.

The product of its (nonzero) digits is 32256, while the sum is 31.

The square root of 343402474 is about 18531.1217685277. The cubic root of 343402474 is about 700.2736848180.

The spelling of 343402474 in words is "three hundred forty-three million, four hundred two thousand, four hundred seventy-four".