1683449754 has 32 divisors (see below), whose sum is σ = 3951885696. Its totient is φ = 467985600.

The previous prime is 1683449731. The next prime is 1683449771. The reversal of 1683449754 is 4579443861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1683449697 and 1683449706.

It is an unprimeable number.

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, 540097 + ... + 543204.

It is an arithmetic number, because the mean of its divisors is an integer number (123496428).

Almost surely, 2^1683449754 is an apocalyptic number.

1683449754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1683449754 is an abundant number, since it is smaller than the sum of its proper divisors (2268435942).

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

1683449754 is a wasteful number, since it uses less digits than its factorization.

1683449754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083350.

The product of its digits is 2903040, while the sum is 51.

The square root of 1683449754 is about 41029.8641723318. The cubic root of 1683449754 is about 1189.5975274302.

The spelling of 1683449754 in words is "one billion, six hundred eighty-three million, four hundred forty-nine thousand, seven hundred fifty-four".