299681945 has 8 divisors (see below), whose sum is σ = 365713920. Its totient is φ = 235681840.

The previous prime is 299681939. The next prime is 299681947. The reversal of 299681945 is 549186992.

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

It is not a de Polignac number, because 299681945 - 2⁸ = 299681689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (299681947) 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, 507641 + ... + 508230.

It is an arithmetic number, because the mean of its divisors is an integer number (45714240).

Almost surely, 2^299681945 is an apocalyptic number.

It is an amenable number.

299681945 is a deficient number, since it is larger than the sum of its proper divisors (66031975).

299681945 is a wasteful number, since it uses less digits than its factorization.

299681945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015935.

The product of its digits is 1399680, while the sum is 53.

The square root of 299681945 is about 17311.3241838977. The cubic root of 299681945 is about 669.1962925435.

It can be divided in two parts, 29968 and 1945, that added together give a palindrome (31913).

The spelling of 299681945 in words is "two hundred ninety-nine million, six hundred eighty-one thousand, nine hundred forty-five".