1684338404 has 24 divisors (see below), whose sum is σ = 3370604160. Its totient is φ = 721446336.

The previous prime is 1684338311. The next prime is 1684338419. The reversal of 1684338404 is 4048334861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35432 + ... + 68000.

It is an arithmetic number, because the mean of its divisors is an integer number (140441840).

Almost surely, 2^1684338404 is an apocalyptic number.

1684338404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1684338404 is an abundant number, since it is smaller than the sum of its proper divisors (1686265756).

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

1684338404 is a wasteful number, since it uses less digits than its factorization.

1684338404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34427 (or 34425 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 1684338404 is about 41040.6920506952. The cubic root of 1684338404 is about 1189.8068099631.

The spelling of 1684338404 in words is "one billion, six hundred eighty-four million, three hundred thirty-eight thousand, four hundred four".