8173040 has 60 divisors (see below), whose sum is σ = 20125944. Its totient is φ = 3086208.

The previous prime is 8173031. The next prime is 8173049. The reversal of 8173040 is 403718.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8173031) and next prime (8173049).

It is a junction number, because it is equal to n+sod(n) for n = 8172997 and 8173015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8173049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28739 + ... + 29021.

Almost surely, 2^8173040 is an apocalyptic number.

8173040 is a gapful number since it is divisible by the number (80) 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 8173040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10062972).

8173040 is an abundant number, since it is smaller than the sum of its proper divisors (11952904).

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

8173040 is a wasteful number, since it uses less digits than its factorization.

8173040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 8173040 is about 2858.8529168182. The cubic root of 8173040 is about 201.4317263417.

Adding to 8173040 its reverse (403718), we get a palindrome (8576758).

The spelling of 8173040 in words is "eight million, one hundred seventy-three thousand, forty".