1673868740 has 48 divisors (see below), whose sum is σ = 3623380992. Its totient is φ = 649157376.

The previous prime is 1673868689. The next prime is 1673868751. The reversal of 1673868740 is 478683761.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110717 + ... + 124923.

It is an arithmetic number, because the mean of its divisors is an integer number (75487104).

Almost surely, 2^1673868740 is an apocalyptic number.

1673868740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1673868740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811690496).

1673868740 is an abundant number, since it is smaller than the sum of its proper divisors (1949512252).

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

1673868740 is a wasteful number, since it uses less digits than its factorization.

1673868740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396 (or 14394 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 1673868740 is about 40912.9409844856. The cubic root of 1673868740 is about 1187.3364478724.

The spelling of 1673868740 in words is "one billion, six hundred seventy-three million, eight hundred sixty-eight thousand, seven hundred forty".