1673699328 has 448 divisors, whose sum is σ = 6039429120. Its totient is φ = 447676416.

The previous prime is 1673699311. The next prime is 1673699369. The reversal of 1673699328 is 8239963761.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (2939328) is a multiple of the sum of its prime factors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35610601 + ... + 35610647.

Almost surely, 2^1673699328 is an apocalyptic number.

1673699328 is a gapful number since it is divisible by the number (18) 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 1673699328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3019714560).

1673699328 is an abundant number, since it is smaller than the sum of its proper divisors (4365729792).

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

1673699328 is an equidigital number, since it uses as much as digits as its factorization.

1673699328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 82 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 1673699328 is about 40910.8705358368. The cubic root of 1673699328 is about 1187.2963898073.

The spelling of 1673699328 in words is "one billion, six hundred seventy-three million, six hundred ninety-nine thousand, three hundred twenty-eight".