1612684394 has 32 divisors (see below), whose sum is σ = 2578598400. Its totient is φ = 754291440.

The previous prime is 1612684349. The next prime is 1612684397. The reversal of 1612684394 is 4934862161.

It is a super-2 number, since 2×1612684394² = 5201501909302294472, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1612684397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113779 + ... + 1115225.

It is an arithmetic number, because the mean of its divisors is an integer number (80581200).

Almost surely, 2^1612684394 is an apocalyptic number.

1612684394 is a deficient number, since it is larger than the sum of its proper divisors (965914006).

1612684394 is a wasteful number, since it uses less digits than its factorization.

1612684394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818.

The product of its digits is 248832, while the sum is 44.

The square root of 1612684394 is about 40158.2419186896. The cubic root of 1612684394 is about 1172.6897461763.

The spelling of 1612684394 in words is "one billion, six hundred twelve million, six hundred eighty-four thousand, three hundred ninety-four".