361812 has 24 divisors (see below), whose sum is σ = 921312. Its totient is φ = 109600.

The previous prime is 361807. The next prime is 361843. The reversal of 361812 is 218163.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

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

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 361812.

It is an unprimeable number.

361812 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, 1239 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (38388).

2³⁶¹⁸¹² is an apocalyptic number.

It is an amenable number.

361812 is an abundant number, since it is smaller than the sum of its proper divisors (559500).

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

361812 is a wasteful number, since it uses less digits than its factorization.

361812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759 (or 2757 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 361812 is about 601.5081046836. The cubic root of 361812 is about 71.2570199301.

Adding to 361812 its reverse (218163), we get a palindrome (579975).

The spelling of 361812 in words is "three hundred sixty-one thousand, eight hundred twelve".