30245693 has 4 divisors (see below), whose sum is σ = 30513468. Its totient is φ = 29977920.

The previous prime is 30245681. The next prime is 30245711. The reversal of 30245693 is 39654203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39654203 = 1231 ⋅32213.

It can be written as a sum of positive squares in 2 ways, for example, as 357604 + 29888089 = 598^2 + 5467^2 .

It is a cyclic number.

It is not a de Polignac number, because 30245693 - 2⁶ = 30245629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30245603) 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, 133718 + ... + 133943.

It is an arithmetic number, because the mean of its divisors is an integer number (7628367).

Almost surely, 2^30245693 is an apocalyptic number.

It is an amenable number.

30245693 is a deficient number, since it is larger than the sum of its proper divisors (267775).

30245693 is a wasteful number, since it uses less digits than its factorization.

30245693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267774.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 30245693 is about 5499.6084406074. The cubic root of 30245693 is about 311.5691957235.

Adding to 30245693 its reverse (39654203), we get a palindrome (69899896).

The spelling of 30245693 in words is "thirty million, two hundred forty-five thousand, six hundred ninety-three".