345530222 has 4 divisors (see below), whose sum is σ = 518295336. Its totient is φ = 172765110.

The previous prime is 345530221. The next prime is 345530261. The reversal of 345530222 is 222035543.

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

It is a super-2 number, since 2×345530222² = 238782268630738568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345530191 and 345530200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345530221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86382554 + ... + 86382557.

It is an arithmetic number, because the mean of its divisors is an integer number (129573834).

Almost surely, 2^345530222 is an apocalyptic number.

345530222 is a deficient number, since it is larger than the sum of its proper divisors (172765114).

345530222 is a wasteful number, since it uses less digits than its factorization.

345530222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172765113.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 345530222 is about 18588.4432376679. The cubic root of 345530222 is about 701.7170243371.

Adding to 345530222 its reverse (222035543), we get a palindrome (567565765).

The spelling of 345530222 in words is "three hundred forty-five million, five hundred thirty thousand, two hundred twenty-two".