345402226 has 16 divisors (see below), whose sum is σ = 590779224. Its totient is φ = 150038784.

The previous prime is 345402223. The next prime is 345402251. The reversal of 345402226 is 622204543.

It is a Cunningham number, because it is equal to 18585²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 342287001 + 3115225 = 18501^2 + 1765^2 .

It is a junction number, because it is equal to n+sod(n) for n = 345402194 and 345402203.

It is not an unprimeable number, because it can be changed into a prime (345402223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390285 + ... + 391168.

Almost surely, 2^345402226 is an apocalyptic number.

345402226 is a deficient number, since it is larger than the sum of its proper divisors (245376998).

345402226 is a wasteful number, since it uses less digits than its factorization.

345402226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781485.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 345402226 is about 18585.0000269034. Note that the first 4 decimals coincide. The cubic root of 345402226 is about 701.6303671175.

Adding to 345402226 its reverse (622204543), we get a palindrome (967606769).

The spelling of 345402226 in words is "three hundred forty-five million, four hundred two thousand, two hundred twenty-six".