30240461 has 4 divisors (see below), whose sum is σ = 30252924. Its totient is φ = 30228000.

The previous prime is 30240449. The next prime is 30240473. The reversal of 30240461 is 16404203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16404203 = 83 ⋅197641.

It is an interprime number because it is at equal distance from previous prime (30240449) and next prime (30240473).

It can be written as a sum of positive squares in 2 ways, for example, as 8094025 + 22146436 = 2845^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 30240461 - 2¹⁰ = 30239437 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 (30240401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280 + ... + 7881.

It is an arithmetic number, because the mean of its divisors is an integer number (7563231).

Almost surely, 2^30240461 is an apocalyptic number.

It is an amenable number.

30240461 is a deficient number, since it is larger than the sum of its proper divisors (12463).

30240461 is an equidigital number, since it uses as much as digits as its factorization.

30240461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12462.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 30240461 is about 5499.1327498070. The cubic root of 30240461 is about 311.5512292643.

Adding to 30240461 its reverse (16404203), we get a palindrome (46644664).

The spelling of 30240461 in words is "thirty million, two hundred forty thousand, four hundred sixty-one".