345246660 has 72 divisors (see below), whose sum is σ = 1142459136. Its totient is φ = 83695680.

The previous prime is 345246647. The next prime is 345246661. The reversal of 345246660 is 66642543.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (345246661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85204 + ... + 89163.

It is an arithmetic number, because the mean of its divisors is an integer number (15867488).

Almost surely, 2^345246660 is an apocalyptic number.

345246660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345246660 is an abundant number, since it is smaller than the sum of its proper divisors (797212476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345246660 is a wasteful number, since it uses less digits than its factorization.

345246660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174393 (or 174388 counting only the distinct ones).

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

The square root of 345246660 is about 18580.8142986253. The cubic root of 345246660 is about 701.5250153351.

The spelling of 345246660 in words is "three hundred forty-five million, two hundred forty-six thousand, six hundred sixty".