345446512 has 20 divisors (see below), whose sum is σ = 678473440. Its totient is φ = 170356608.

The previous prime is 345446509. The next prime is 345446513. The reversal of 345446512 is 215644543.

It is a super-2 number, since 2×345446512² = 238666585305932288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345446513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146712 + ... + 149047.

It is an arithmetic number, because the mean of its divisors is an integer number (33923672).

Almost surely, 2^345446512 is an apocalyptic number.

It is an amenable number.

345446512 is a deficient number, since it is larger than the sum of its proper divisors (333026928).

345446512 is a wasteful number, since it uses less digits than its factorization.

345446512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295840 (or 295834 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 345446512 is about 18586.1914334271. The cubic root of 345446512 is about 701.6603525202.

The spelling of 345446512 in words is "three hundred forty-five million, four hundred forty-six thousand, five hundred twelve".