1673208306 has 128 divisors (see below), whose sum is σ = 4908625920. Its totient is φ = 409017600.

The previous prime is 1673208287. The next prime is 1673208307. The reversal of 1673208306 is 6038023761.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1673208307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58851 + ... + 82521.

It is an arithmetic number, because the mean of its divisors is an integer number (38348640).

Almost surely, 2^1673208306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1673208306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2454312960).

1673208306 is an abundant number, since it is smaller than the sum of its proper divisors (3235417614).

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

1673208306 is a wasteful number, since it uses less digits than its factorization.

1673208306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23717 (or 23711 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1673208306 is about 40904.8689766878. The cubic root of 1673208306 is about 1187.1802706496.

The spelling of 1673208306 in words is "one billion, six hundred seventy-three million, two hundred eight thousand, three hundred six".