345772845 has 24 divisors (see below), whose sum is σ = 653825952. Its totient is φ = 167647200.

The previous prime is 345772813. The next prime is 345772879. The reversal of 345772845 is 548277543.

345772845 is a `hidden beast` number, since 34 + 577 + 2 + 8 + 45 = 666.

It is not a de Polignac number, because 345772845 - 2⁵ = 345772813 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345772845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348771 + ... + 349760.

It is an arithmetic number, because the mean of its divisors is an integer number (27242748).

Almost surely, 2^345772845 is an apocalyptic number.

It is an amenable number.

345772845 is a deficient number, since it is larger than the sum of its proper divisors (308053107).

345772845 is a wasteful number, since it uses less digits than its factorization.

345772845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698553 (or 698550 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 345772845 is about 18594.9682710135. The cubic root of 345772845 is about 701.8812288409.

The spelling of 345772845 in words is "three hundred forty-five million, seven hundred seventy-two thousand, eight hundred forty-five".