345204442 has 8 divisors (see below), whose sum is σ = 564880032. Its totient is φ = 156911100.

The previous prime is 345204421. The next prime is 345204443. The reversal of 345204442 is 244402543.

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

It is a super-2 number, since 2×345204442² = 238332213553062728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345204442.

It is not an unprimeable number, because it can be changed into a prime (345204443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7845534 + ... + 7845577.

It is an arithmetic number, because the mean of its divisors is an integer number (70610004).

Almost surely, 2^345204442 is an apocalyptic number.

345204442 is a deficient number, since it is larger than the sum of its proper divisors (219675590).

345204442 is a wasteful number, since it uses less digits than its factorization.

345204442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691124.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 345204442 is about 18579.6781995814. The cubic root of 345204442 is about 701.4964191710.

Adding to 345204442 its reverse (244402543), we get a palindrome (589606985).

The spelling of 345204442 in words is "three hundred forty-five million, two hundred four thousand, four hundred forty-two".