345870394 has 8 divisors (see below), whose sum is σ = 526112928. Its totient is φ = 170499420.

The previous prime is 345870391. The next prime is 345870397. The reversal of 345870394 is 493078543.

It is an interprime number because it is at equal distance from previous prime (345870391) and next prime (345870397).

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

It is a self number, because there is not a number n which added to its sum of digits gives 345870394.

It is not an unprimeable number, because it can be changed into a prime (345870391) 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, 1217712 + ... + 1217995.

It is an arithmetic number, because the mean of its divisors is an integer number (65764116).

Almost surely, 2^345870394 is an apocalyptic number.

345870394 is a deficient number, since it is larger than the sum of its proper divisors (180242534).

345870394 is a wasteful number, since it uses less digits than its factorization.

345870394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435780.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 345870394 is about 18597.5910805674. The cubic root of 345870394 is about 701.9472272513.

The spelling of 345870394 in words is "three hundred forty-five million, eight hundred seventy thousand, three hundred ninety-four".