1393678224 has 225 divisors, whose sum is σ = 4356340131. Its totient is φ = 430064640.

The previous prime is 1393678193. The next prime is 1393678243. The reversal of 1393678224 is 4228763931.

The square root of 1393678224 is 37332.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 128595600 + 1265082624 = 11340^2 + 35568^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1393678224.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 22847154 + ... + 22847214.

Almost surely, 2^1393678224 is an apocalyptic number.

1393678224 is the 37332-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1393678224

1393678224 is an abundant number, since it is smaller than the sum of its proper divisors (2962661907).

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

1393678224 is an equidigital number, since it uses as much as digits as its factorization.

1393678224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 83 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The cubic root of 1393678224 is about 1117.0025676746.

The spelling of 1393678224 in words is "one billion, three hundred ninety-three million, six hundred seventy-eight thousand, two hundred twenty-four".