361644394 has 16 divisors (see below), whose sum is σ = 553262400. Its totient is φ = 177241504.

The previous prime is 361644389. The next prime is 361644427. The reversal of 361644394 is 493446163.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38094 + ... + 46630.

It is an arithmetic number, because the mean of its divisors is an integer number (34578900).

Almost surely, 2^361644394 is an apocalyptic number.

361644394 is a deficient number, since it is larger than the sum of its proper divisors (191618006).

361644394 is a wasteful number, since it uses less digits than its factorization.

361644394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957.

The product of its digits is 186624, while the sum is 40.

The square root of 361644394 is about 19016.9501760929. The cubic root of 361644394 is about 712.4601518291.

The spelling of 361644394 in words is "three hundred sixty-one million, six hundred forty-four thousand, three hundred ninety-four".