345880645 has 16 divisors (see below), whose sum is σ = 453378240. Its totient is φ = 251222400.

The previous prime is 345880627. The next prime is 345880649. The reversal of 345880645 is 546088543.

It is not a de Polignac number, because 345880645 - 2¹⁵ = 345847877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345880649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43585 + ... + 50905.

It is an arithmetic number, because the mean of its divisors is an integer number (28336140).

Almost surely, 2^345880645 is an apocalyptic number.

It is an amenable number.

345880645 is a deficient number, since it is larger than the sum of its proper divisors (107497595).

345880645 is a wasteful number, since it uses less digits than its factorization.

345880645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196.

The product of its (nonzero) digits is 460800, while the sum is 43.

The square root of 345880645 is about 18597.8666787350. The cubic root of 345880645 is about 701.9541620165.

The spelling of 345880645 in words is "three hundred forty-five million, eight hundred eighty thousand, six hundred forty-five".