361806 has 16 divisors (see below), whose sum is σ = 739584. Its totient is φ = 117944.

The previous prime is 361799. The next prime is 361807. The reversal of 361806 is 608163.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361806.

It is not an unprimeable number, because it can be changed into a prime (361807) by changing a digit.

361806 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (46224).

2³⁶¹⁸⁰⁶ is an apocalyptic number.

361806 is an abundant number, since it is smaller than the sum of its proper divisors (377778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361806 is a wasteful number, since it uses less digits than its factorization.

361806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 361806 is about 601.5031171989. The cubic root of 361806 is about 71.2566260381.

Adding to 361806 its reverse (608163), we get a palindrome (969969).

The spelling of 361806 in words is "three hundred sixty-one thousand, eight hundred six".