345403225 has 12 divisors (see below), whose sum is σ = 428541520. Its totient is φ = 276166800.

The previous prime is 345403217. The next prime is 345403231. The reversal of 345403225 is 522304543.

It is not a de Polignac number, because 345403225 - 2³ = 345403217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345403193 and 345403202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65746 + ... + 70804.

Almost surely, 2^345403225 is an apocalyptic number.

It is an amenable number.

345403225 is a deficient number, since it is larger than the sum of its proper divisors (83138295).

345403225 is a wasteful number, since it uses less digits than its factorization.

345403225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800 (or 7795 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 345403225 is about 18585.0269033973. The cubic root of 345403225 is about 701.6310435541.

Adding to 345403225 its reverse (522304543), we get a palindrome (867707768).

The spelling of 345403225 in words is "three hundred forty-five million, four hundred three thousand, two hundred twenty-five".