361610644 has 12 divisors (see below), whose sum is σ = 633323124. Its totient is φ = 180661184.

The previous prime is 361610581. The next prime is 361610647. The reversal of 361610644 is 446016163.

It can be written as a sum of positive squares in 2 ways, for example, as 100400400 + 261210244 = 10020^2 + 16162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361610647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30289 + ... + 40504.

It is an arithmetic number, because the mean of its divisors is an integer number (52776927).

Almost surely, 2^361610644 is an apocalyptic number.

It is an amenable number.

361610644 is a deficient number, since it is larger than the sum of its proper divisors (271712480).

361610644 is a wasteful number, since it uses less digits than its factorization.

361610644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72074 (or 72072 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 361610644 is about 19016.0627891265. The cubic root of 361610644 is about 712.4379879958.

The spelling of 361610644 in words is "three hundred sixty-one million, six hundred ten thousand, six hundred forty-four".