1693378344 has 64 divisors (see below), whose sum is σ = 5092876800. Its totient is φ = 458357184.

The previous prime is 1693378343. The next prime is 1693378387. The reversal of 1693378344 is 4438733961.

It is a junction number, because it is equal to n+sod(n) for n = 1693378293 and 1693378302.

It is not an unprimeable number, because it can be changed into a prime (1693378343) 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 15 ways as a sum of consecutive naturals, for example, 262062 + ... + 268445.

It is an arithmetic number, because the mean of its divisors is an integer number (79576200).

Almost surely, 2^1693378344 is an apocalyptic number.

1693378344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1693378344 is an abundant number, since it is smaller than the sum of its proper divisors (3399498456).

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

1693378344 is a wasteful number, since it uses less digits than its factorization.

1693378344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530542 (or 530538 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 48.

The square root of 1693378344 is about 41150.6785363255. The cubic root of 1693378344 is about 1191.9316001320.

The spelling of 1693378344 in words is "one billion, six hundred ninety-three million, three hundred seventy-eight thousand, three hundred forty-four".