361604 has 6 divisors (see below), whose sum is σ = 632814. Its totient is φ = 180800.

The previous prime is 361577. The next prime is 361637. The reversal of 361604 is 406163.

It can be written as a sum of positive squares in only one way, i.e., 270400 + 91204 = 520^2 + 302^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45197 + ... + 45204.

It is an arithmetic number, because the mean of its divisors is an integer number (105469).

2³⁶¹⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

361604 is a deficient number, since it is larger than the sum of its proper divisors (271210).

361604 is a wasteful number, since it uses less digits than its factorization.

361604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90405 (or 90403 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 361604 is about 601.3351810762. The cubic root of 361604 is about 71.2433624678.

Adding to 361604 its reverse (406163), we get a palindrome (767767).

The spelling of 361604 in words is "three hundred sixty-one thousand, six hundred four".