1819680346 has 32 divisors (see below), whose sum is σ = 3080448000. Its totient is φ = 798692400.

The previous prime is 1819680307. The next prime is 1819680349. The reversal of 1819680346 is 6430869181.

It is a super-2 number, since 2×1819680346² = 6622473123237359432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1819680296 and 1819680305.

It is not an unprimeable number, because it can be changed into a prime (1819680349) 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, 337645 + ... + 342991.

It is an arithmetic number, because the mean of its divisors is an integer number (96264000).

Almost surely, 2^1819680346 is an apocalyptic number.

1819680346 is a deficient number, since it is larger than the sum of its proper divisors (1260767654).

1819680346 is a wasteful number, since it uses less digits than its factorization.

1819680346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 1819680346 is about 42657.7114482247. The cubic root of 1819680346 is about 1220.8576666447.

The spelling of 1819680346 in words is "one billion, eight hundred nineteen million, six hundred eighty thousand, three hundred forty-six".