1693468128 has 48 divisors (see below), whose sum is σ = 4849479936. Its totient is φ = 513171840.

The previous prime is 1693468121. The next prime is 1693468129. The reversal of 1693468128 is 8218643961.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1693468121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 800776 + ... + 802887.

It is an arithmetic number, because the mean of its divisors is an integer number (101030832).

Almost surely, 2^1693468128 is an apocalyptic number.

It is an amenable number.

1693468128 is an abundant number, since it is smaller than the sum of its proper divisors (3156011808).

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

1693468128 is a wasteful number, since it uses less digits than its factorization.

1693468128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603687 (or 1603679 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 1693468128 is about 41151.7694394785. The cubic root of 1693468128 is about 1191.9526654176.

The spelling of 1693468128 in words is "one billion, six hundred ninety-three million, four hundred sixty-eight thousand, one hundred twenty-eight".