1384931644 has 6 divisors (see below), whose sum is σ = 2423630384. Its totient is φ = 692465820.

The previous prime is 1384931633. The next prime is 1384931651. The reversal of 1384931644 is 4461394831.

It is a self number, because there is not a number n which added to its sum of digits gives 1384931644.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 173116452 + ... + 173116459.

Almost surely, 2^1384931644 is an apocalyptic number.

It is an amenable number.

1384931644 is a deficient number, since it is larger than the sum of its proper divisors (1038698740).

1384931644 is a wasteful number, since it uses less digits than its factorization.

1384931644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346232915 (or 346232913 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 1384931644 is about 37214.6697419176. The cubic root of 1384931644 is about 1114.6609314411.

The spelling of 1384931644 in words is "one billion, three hundred eighty-four million, nine hundred thirty-one thousand, six hundred forty-four".