1683426438 has 24 divisors (see below), whose sum is σ = 3682839888. Its totient is φ = 555693552.

The previous prime is 1683426383. The next prime is 1683426457. The reversal of 1683426438 is 8346243861.

1683426438 is a `hidden beast` number, since 168 + 34 + 26 + 438 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1683426393 and 1683426402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452145 + ... + 455852.

It is an arithmetic number, because the mean of its divisors is an integer number (153451662).

Almost surely, 2^1683426438 is an apocalyptic number.

1683426438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1683426438 is an abundant number, since it is smaller than the sum of its proper divisors (1999413450).

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

1683426438 is a wasteful number, since it uses less digits than its factorization.

1683426438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908108 (or 908105 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 1683426438 is about 41029.5800368466. The cubic root of 1683426438 is about 1189.5920353776.

The spelling of 1683426438 in words is "one billion, six hundred eighty-three million, four hundred twenty-six thousand, four hundred thirty-eight".