30849313 has 12 divisors (see below), whose sum is σ = 34110244. Its totient is φ = 27878400.

The previous prime is 30849311. The next prime is 30849319. The reversal of 30849313 is 31394803.

It can be written as a sum of positive squares in 2 ways, for example, as 19070689 + 11778624 = 4367^2 + 3432^2 .

It is not a de Polignac number, because 30849313 - 2¹ = 30849311 is a prime.

It is a super-2 number, since 2×30849313² = 1903360225143938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30849311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22693 + ... + 24013.

Almost surely, 2^30849313 is an apocalyptic number.

It is an amenable number.

30849313 is a deficient number, since it is larger than the sum of its proper divisors (3260931).

30849313 is a wasteful number, since it uses less digits than its factorization.

30849313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30849313 is about 5554.2157862294. The cubic root of 30849313 is about 313.6282434182.

Subtracting 30849313 from its reverse (31394803), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 30849313 in words is "thirty million, eight hundred forty-nine thousand, three hundred thirteen".