30240173 has 8 divisors (see below), whose sum is σ = 30758400. Its totient is φ = 29725488.

The previous prime is 30240169. The next prime is 30240187. The reversal of 30240173 is 37104203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30240173 - 2² = 30240169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30240103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20540 + ... + 21962.

It is an arithmetic number, because the mean of its divisors is an integer number (3844800).

Almost surely, 2^30240173 is an apocalyptic number.

It is an amenable number.

30240173 is a deficient number, since it is larger than the sum of its proper divisors (518227).

30240173 is a wasteful number, since it uses less digits than its factorization.

30240173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30240173 is about 5499.1065637974. The cubic root of 30240173 is about 311.5502402247.

Adding to 30240173 its reverse (37104203), we get a palindrome (67344376).

The spelling of 30240173 in words is "thirty million, two hundred forty thousand, one hundred seventy-three".