30244013 has 4 divisors (see below), whose sum is σ = 31286940. Its totient is φ = 29201088.

The previous prime is 30243989. The next prime is 30244021. The reversal of 30244013 is 31044203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31044203 = 541 ⋅57383.

It can be written as a sum of positive squares in 2 ways, for example, as 7414729 + 22829284 = 2723^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 30244013 - 2⁸ = 30243757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30243982 and 30244000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30244043) 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, 521420 + ... + 521477.

It is an arithmetic number, because the mean of its divisors is an integer number (7821735).

Almost surely, 2^30244013 is an apocalyptic number.

It is an amenable number.

30244013 is a deficient number, since it is larger than the sum of its proper divisors (1042927).

30244013 is a wasteful number, since it uses less digits than its factorization.

30244013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042926.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30244013 is about 5499.4557003398. The cubic root of 30244013 is about 311.5634269028.

Adding to 30244013 its reverse (31044203), we get a palindrome (61288216).

The spelling of 30244013 in words is "thirty million, two hundred forty-four thousand, thirteen".