361645868 has 12 divisors (see below), whose sum is σ = 638687280. Its totient is φ = 179163792.

The previous prime is 361645861. The next prime is 361645873. The reversal of 361645868 is 868546163.

It is not an unprimeable number, because it can be changed into a prime (361645861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414296 + ... + 415167.

It is an arithmetic number, because the mean of its divisors is an integer number (53223940).

Almost surely, 2^361645868 is an apocalyptic number.

It is an amenable number.

361645868 is a deficient number, since it is larger than the sum of its proper divisors (277041412).

361645868 is a wasteful number, since it uses less digits than its factorization.

361645868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829576 (or 829574 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 361645868 is about 19016.9889309533. The cubic root of 361645868 is about 712.4611197826.

The spelling of 361645868 in words is "three hundred sixty-one million, six hundred forty-five thousand, eight hundred sixty-eight".