365945818 has 12 divisors (see below), whose sum is σ = 638538282. Its totient is φ = 156833880.

The previous prime is 365945813. The next prime is 365945819. The reversal of 365945818 is 818549563.

It can be written as a sum of positive squares in only one way, i.e., 339185889 + 26759929 = 18417^2 + 5173^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (365945813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1866973 + ... + 1867168.

Almost surely, 2^365945818 is an apocalyptic number.

365945818 is a deficient number, since it is larger than the sum of its proper divisors (272592464).

365945818 is a wasteful number, since it uses less digits than its factorization.

365945818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734157 (or 3734150 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 365945818 is about 19129.7103480424. The cubic root of 365945818 is about 715.2737100638.

The spelling of 365945818 in words is "three hundred sixty-five million, nine hundred forty-five thousand, eight hundred eighteen".