345287049 has 8 divisors (see below), whose sum is σ = 463897632. Its totient is φ = 228433920.

The previous prime is 345287011. The next prime is 345287053. The reversal of 345287049 is 940782543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345287049 - 2⁸ = 345286793 is a prime.

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 345287049.

It is not an unprimeable number, because it can be changed into a prime (345287009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438904 + ... + 439689.

It is an arithmetic number, because the mean of its divisors is an integer number (57987204).

Almost surely, 2^345287049 is an apocalyptic number.

It is an amenable number.

345287049 is a deficient number, since it is larger than the sum of its proper divisors (118610583).

345287049 is a wasteful number, since it uses less digits than its factorization.

345287049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878727.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 345287049 is about 18581.9011137182. The cubic root of 345287049 is about 701.5523704528.

The spelling of 345287049 in words is "three hundred forty-five million, two hundred eighty-seven thousand, forty-nine".