349724565 has 48 divisors (see below), whose sum is σ = 621129600. Its totient is φ = 181973376.

The previous prime is 349724563. The next prime is 349724569. The reversal of 349724565 is 565427943.

349724565 is a `hidden beast` number, since 349 + 7 + 245 + 65 = 666.

It is not a de Polignac number, because 349724565 - 2¹ = 349724563 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 349724565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349724563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 416416 + ... + 417254.

It is an arithmetic number, because the mean of its divisors is an integer number (12940200).

Almost surely, 2^349724565 is an apocalyptic number.

It is an amenable number.

349724565 is a deficient number, since it is larger than the sum of its proper divisors (271405035).

349724565 is a wasteful number, since it uses less digits than its factorization.

349724565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1063 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 349724565 is about 18700.9241750241. The cubic root of 349724565 is about 704.5449606227.

The spelling of 349724565 in words is "three hundred forty-nine million, seven hundred twenty-four thousand, five hundred sixty-five".