345563385 has 32 divisors (see below), whose sum is σ = 584886528. Its totient is φ = 173859840.

The previous prime is 345563381. The next prime is 345563389. The reversal of 345563385 is 583365543.

It is an interprime number because it is at equal distance from previous prime (345563381) and next prime (345563389).

It is not a de Polignac number, because 345563385 - 2² = 345563381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345563381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18325 + ... + 32045.

It is an arithmetic number, because the mean of its divisors is an integer number (18277704).

Almost surely, 2^345563385 is an apocalyptic number.

It is an amenable number.

345563385 is a deficient number, since it is larger than the sum of its proper divisors (239323143).

345563385 is a wasteful number, since it uses less digits than its factorization.

345563385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13825.

The product of its digits is 648000, while the sum is 42.

The square root of 345563385 is about 18589.3352490077. The cubic root of 345563385 is about 701.7394732149.

The spelling of 345563385 in words is "three hundred forty-five million, five hundred sixty-three thousand, three hundred eighty-five".