365890 has 16 divisors (see below), whose sum is σ = 752832. Its totient is φ = 125424.

The previous prime is 365851. The next prime is 365903. The reversal of 365890 is 98563.

365890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2544 + ... + 2683.

It is an arithmetic number, because the mean of its divisors is an integer number (47052).

2³⁶⁵⁸⁹⁰ is an apocalyptic number.

365890 is an abundant number, since it is smaller than the sum of its proper divisors (386942).

It is a weird number, because it is abundant, but not a pseudoperfect number.

365890 is a wasteful number, since it uses less digits than its factorization.

365890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 365890 is about 604.8884194626. Note that the first 3 decimals coincide. The cubic root of 365890 is about 71.5237341130.

The spelling of 365890 in words is "three hundred sixty-five thousand, eight hundred ninety".