1396938384 has 60 divisors (see below), whose sum is σ = 3983272956. Its totient is φ = 456857856.

The previous prime is 1396938383. The next prime is 1396938397. The reversal of 1396938384 is 4838396931.

It can be written as a sum of positive squares in 2 ways, for example, as 343286784 + 1053651600 = 18528^2 + 32460^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1396938384.

It is not an unprimeable number, because it can be changed into a prime (1396938383) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 83887 + ... + 99150.

Almost surely, 2^1396938384 is an apocalyptic number.

It is an amenable number.

1396938384 is an abundant number, since it is smaller than the sum of its proper divisors (2586334572).

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

1396938384 is a wasteful number, since it uses less digits than its factorization.

1396938384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183104 (or 183095 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 1396938384 is about 37375.6389109270. The cubic root of 1396938384 is about 1117.8728716829.

The spelling of 1396938384 in words is "one billion, three hundred ninety-six million, nine hundred thirty-eight thousand, three hundred eighty-four".