1673432064 has 132 divisors (see below), whose sum is σ = 4880031624. Its totient is φ = 552271872.

The previous prime is 1673432051. The next prime is 1673432099. The reversal of 1673432064 is 4602343761.

It is a happy number.

1673432064 is a `hidden beast` number, since 167 + 3 + 432 + 0 + 64 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 985264 + ... + 986960.

Almost surely, 2^1673432064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1673432064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2440015812).

1673432064 is an abundant number, since it is smaller than the sum of its proper divisors (3206599560).

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

1673432064 is a wasteful number, since it uses less digits than its factorization.

1673432064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1809 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 1673432064 is about 40907.6039875229. The cubic root of 1673432064 is about 1187.2331887952.

The spelling of 1673432064 in words is "one billion, six hundred seventy-three million, four hundred thirty-two thousand, sixty-four".