361808 has 10 divisors (see below), whose sum is σ = 701034. Its totient is φ = 180896.

The previous prime is 361807. The next prime is 361843. The reversal of 361808 is 808163.

It can be written as a sum of positive squares in only one way, i.e., 300304 + 61504 = 548^2 + 248^2 .

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 361808.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11291 + ... + 11322.

2³⁶¹⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

361808 is a deficient number, since it is larger than the sum of its proper divisors (339226).

361808 is a wasteful number, since it uses less digits than its factorization.

361808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22621 (or 22615 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 361808 is about 601.5047796984. The cubic root of 361808 is about 71.2567573359.

The spelling of 361808 in words is "three hundred sixty-one thousand, eight hundred eight".