1693932394 has 32 divisors (see below), whose sum is σ = 3354224256. Its totient is φ = 621150720.

The previous prime is 1693932389. The next prime is 1693932397. The reversal of 1693932394 is 4932393961.

It is not an unprimeable number, because it can be changed into a prime (1693932397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320899 + ... + 326134.

It is an arithmetic number, because the mean of its divisors is an integer number (104819508).

Almost surely, 2^1693932394 is an apocalyptic number.

1693932394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1693932394 is a deficient number, since it is larger than the sum of its proper divisors (1660291862).

1693932394 is a wasteful number, since it uses less digits than its factorization.

1693932394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647070.

The product of its digits is 944784, while the sum is 49.

The square root of 1693932394 is about 41157.4099525225. The cubic root of 1693932394 is about 1192.0615804747.

The spelling of 1693932394 in words is "one billion, six hundred ninety-three million, nine hundred thirty-two thousand, three hundred ninety-four".