361304021 has 8 divisors (see below), whose sum is σ = 396438840. Its totient is φ = 327218112.

The previous prime is 361303997. The next prime is 361304029. The reversal of 361304021 is 120403163.

It can be written as a sum of positive squares in 4 ways, for example, as 17757796 + 343546225 = 4214^2 + 18535^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-361304021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361303984 and 361304002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361304029) 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, 261506 + ... + 262883.

It is an arithmetic number, because the mean of its divisors is an integer number (49554855).

Almost surely, 2^361304021 is an apocalyptic number.

It is an amenable number.

361304021 is a deficient number, since it is larger than the sum of its proper divisors (35134819).

361304021 is a wasteful number, since it uses less digits than its factorization.

361304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524455.

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

The square root of 361304021 is about 19007.9988688973. The cubic root of 361304021 is about 712.2365635726.

Adding to 361304021 its reverse (120403163), we get a palindrome (481707184).

The spelling of 361304021 in words is "three hundred sixty-one million, three hundred four thousand, twenty-one".