3000391645 has 4 divisors (see below), whose sum is σ = 3600469980. Its totient is φ = 2400313312.

The previous prime is 3000391619. The next prime is 3000391697. The reversal of 3000391645 is 5461930003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 901560676 + 2098830969 = 30026^2 + 45813^2 .

It is a cyclic number.

It is not a de Polignac number, because 3000391645 - 2⁵ = 3000391613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300039160 + ... + 300039169.

It is an arithmetic number, because the mean of its divisors is an integer number (900117495).

Almost surely, 2^3000391645 is an apocalyptic number.

It is an amenable number.

3000391645 is a deficient number, since it is larger than the sum of its proper divisors (600078335).

3000391645 is an equidigital number, since it uses as much as digits as its factorization.

3000391645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600078334.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 3000391645 is about 54775.8308471903. The cubic root of 3000391645 is about 1442.3123286690.

The spelling of 3000391645 in words is "three billion, three hundred ninety-one thousand, six hundred forty-five".