343400578 has 16 divisors (see below), whose sum is σ = 562996224. Its totient is φ = 156386880.

The previous prime is 343400531. The next prime is 343400579. The reversal of 343400578 is 875004343.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (343400579) 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 7 ways as a sum of consecutive naturals, for example, 161850 + ... + 163957.

It is an arithmetic number, because the mean of its divisors is an integer number (35187264).

Almost surely, 2^343400578 is an apocalyptic number.

343400578 is a deficient number, since it is larger than the sum of its proper divisors (219595646).

343400578 is a wasteful number, since it uses less digits than its factorization.

343400578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325857.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 343400578 is about 18531.0706112734. The cubic root of 343400578 is about 700.2723960276.

The spelling of 343400578 in words is "three hundred forty-three million, four hundred thousand, five hundred seventy-eight".