361205604 has 36 divisors (see below), whose sum is σ = 913823820. Its totient is φ = 120299520.

The previous prime is 361205597. The next prime is 361205609. The reversal of 361205604 is 406502163.

361205604 is a `hidden beast` number, since 36 + 1 + 20 + 5 + 604 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6260004 + 354945600 = 2502^2 + 18840^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×361205604² = 260938976722009632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (361205609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47164 + ... + 54284.

It is an arithmetic number, because the mean of its divisors is an integer number (25383995).

Almost surely, 2^361205604 is an apocalyptic number.

It is an amenable number.

361205604 is an abundant number, since it is smaller than the sum of its proper divisors (552618216).

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

361205604 is a wasteful number, since it uses less digits than its factorization.

361205604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8540 (or 8535 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 361205604 is about 19005.4098614053. The cubic root of 361205604 is about 712.1718880755.

Adding to 361205604 its reverse (406502163), we get a palindrome (767707767).

It can be divided in two parts, 36 and 1205604, that multiplied together give a square (43401744 = 6588²).

The spelling of 361205604 in words is "three hundred sixty-one million, two hundred five thousand, six hundred four".