1673869440 has 128 divisors (see below), whose sum is σ = 5356811520. Its totient is φ = 444579840.

The previous prime is 1673869411. The next prime is 1673869481. The reversal of 1673869440 is 449683761.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1673869440.

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, 518712 + ... + 521928.

It is an arithmetic number, because the mean of its divisors is an integer number (41850090).

Almost surely, 2^1673869440 is an apocalyptic number.

1673869440 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 1673869440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2678405760).

1673869440 is an abundant number, since it is smaller than the sum of its proper divisors (3682942080).

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

1673869440 is a wasteful number, since it uses less digits than its factorization.

1673869440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3510 (or 3498 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 1673869440 is about 40912.9495392351. The cubic root of 1673869440 is about 1187.3366133842.

The spelling of 1673869440 in words is "one billion, six hundred seventy-three million, eight hundred sixty-nine thousand, four hundred forty".