361646 has 16 divisors (see below), whose sum is σ = 591360. Its totient is φ = 165240.

The previous prime is 361643. The next prime is 361649. The reversal of 361646 is 646163.

It is an interprime number because it is at equal distance from previous prime (361643) and next prime (361649).

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a plaindrome in base 11.

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 361646.

It is not an unprimeable number, because it can be changed into a prime (361643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025 + ... + 1331.

It is an arithmetic number, because the mean of its divisors is an integer number (36960).

2³⁶¹⁶⁴⁶ is an apocalyptic number.

361646 is a deficient number, since it is larger than the sum of its proper divisors (229714).

361646 is a wasteful number, since it uses less digits than its factorization.

361646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359.

The product of its digits is 2592, while the sum is 26.

The square root of 361646 is about 601.3701023496. The cubic root of 361646 is about 71.2461206465.

The spelling of 361646 in words is "three hundred sixty-one thousand, six hundred forty-six".