30774393 has 18 divisors (see below), whose sum is σ = 48136686. Its totient is φ = 18937152.

The previous prime is 30774379. The next prime is 30774449. The reversal of 30774393 is 39347703.

It can be written as a sum of positive squares in 3 ways, for example, as 5184 + 30769209 = 72^2 + 5547^2 .

It is not a de Polignac number, because 30774393 - 2⁵ = 30774361 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30774193) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8596 + ... + 11637.

Almost surely, 2^30774393 is an apocalyptic number.

It is an amenable number.

30774393 is a deficient number, since it is larger than the sum of its proper divisors (17362293).

30774393 is a wasteful number, since it uses less digits than its factorization.

30774393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20265 (or 20249 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 36.

The square root of 30774393 is about 5547.4672599304. The cubic root of 30774393 is about 313.3741472663.

The spelling of 30774393 in words is "thirty million, seven hundred seventy-four thousand, three hundred ninety-three".