361867249 has 8 divisors (see below), whose sum is σ = 375273000. Its totient is φ = 348523392.

The previous prime is 361867213. The next prime is 361867267. The reversal of 361867249 is 942768163.

It can be written as a sum of positive squares in 4 ways, for example, as 25401600 + 336465649 = 5040^2 + 18343^2 .

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-361867249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 361867199 and 361867208.

It is not an unprimeable number, because it can be changed into a prime (361867949) 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, 3394 + ... + 27115.

It is an arithmetic number, because the mean of its divisors is an integer number (46909125).

Almost surely, 2^361867249 is an apocalyptic number.

It is an amenable number.

361867249 is a deficient number, since it is larger than the sum of its proper divisors (13405751).

361867249 is a wasteful number, since it uses less digits than its factorization.

361867249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30947.

The product of its digits is 435456, while the sum is 46.

The square root of 361867249 is about 19022.8086517212. The cubic root of 361867249 is about 712.6064674797.

The spelling of 361867249 in words is "three hundred sixty-one million, eight hundred sixty-seven thousand, two hundred forty-nine".