345386223 has 24 divisors (see below), whose sum is σ = 614021408. Its totient is φ = 182181312.

The previous prime is 345386219. The next prime is 345386233. The reversal of 345386223 is 322683543.

It is a happy number.

It is not a de Polignac number, because 345386223 - 2² = 345386219 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345386233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210040 + ... + 211677.

Almost surely, 2^345386223 is an apocalyptic number.

345386223 is a deficient number, since it is larger than the sum of its proper divisors (268635185).

345386223 is a wasteful number, since it uses less digits than its factorization.

345386223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421743 (or 421740 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 345386223 is about 18584.5694865391. The cubic root of 345386223 is about 701.6195310899.

Subtracting from 345386223 its product of digits (103680), we obtain a palindrome (345282543).

It can be divided in two parts, 3453 and 86223, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 345386223 in words is "three hundred forty-five million, three hundred eighty-six thousand, two hundred twenty-three".