340402226 has 4 divisors (see below), whose sum is σ = 510603342. Its totient is φ = 170201112.

The previous prime is 340402189. The next prime is 340402229. The reversal of 340402226 is 622204043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622204043 = 8713 ⋅71411.

It can be written as a sum of positive squares in only one way, i.e., 211557025 + 128845201 = 14545^2 + 11351^2 .

It is not an unprimeable number, because it can be changed into a prime (340402229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85100555 + ... + 85100558.

Almost surely, 2^340402226 is an apocalyptic number.

340402226 is a deficient number, since it is larger than the sum of its proper divisors (170201116).

340402226 is a wasteful number, since it uses less digits than its factorization.

340402226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170201115.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 340402226 is about 18449.9925745243. The cubic root of 340402226 is about 698.2283265474.

Adding to 340402226 its reverse (622204043), we get a palindrome (962606269).

The spelling of 340402226 in words is "three hundred forty million, four hundred two thousand, two hundred twenty-six".