360639640 has 16 divisors (see below), whose sum is σ = 811439280. Its totient is φ = 144255840.

The previous prime is 360639599. The next prime is 360639641. The reversal of 360639640 is 46936063.

It is a self number, because there is not a number n which added to its sum of digits gives 360639640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (360639641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4507956 + ... + 4508035.

It is an arithmetic number, because the mean of its divisors is an integer number (50714955).

Almost surely, 2^360639640 is an apocalyptic number.

It is an amenable number.

360639640 is an abundant number, since it is smaller than the sum of its proper divisors (450799640).

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

360639640 is a wasteful number, since it uses less digits than its factorization.

360639640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016002 (or 9015998 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 360639640 is about 18990.5144743369. The cubic root of 360639640 is about 711.7997322118.

It can be divided in two parts, 360 and 639640, that added together give a square (640000 = 800²).

The spelling of 360639640 in words is "three hundred sixty million, six hundred thirty-nine thousand, six hundred forty".