299020645 has 24 divisors (see below), whose sum is σ = 450761472. Its totient is φ = 186399840.

The previous prime is 299020621. The next prime is 299020649. The reversal of 299020645 is 546020992.

It is not a de Polignac number, because 299020645 - 2⁹ = 299020133 is a prime.

It is a super-2 number, since 2×299020645² = 178826692272432050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299020649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31069 + ... + 39538.

It is an arithmetic number, because the mean of its divisors is an integer number (18781728).

Almost surely, 2^299020645 is an apocalyptic number.

It is an amenable number.

299020645 is a deficient number, since it is larger than the sum of its proper divisors (151740827).

299020645 is a wasteful number, since it uses less digits than its factorization.

299020645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70641 (or 70630 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 299020645 is about 17292.2134210748. The cubic root of 299020645 is about 668.7036976123.

The spelling of 299020645 in words is "two hundred ninety-nine million, twenty thousand, six hundred forty-five".