30297650 has 12 divisors (see below), whose sum is σ = 56353722. Its totient is φ = 12119040.

The previous prime is 30297649. The next prime is 30297653. The reversal of 30297650 is 5679203.

It can be written as a sum of positive squares in 3 ways, for example, as 27552001 + 2745649 = 5249^2 + 1657^2 .

It is not an unprimeable number, because it can be changed into a prime (30297653) 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 5 ways as a sum of consecutive naturals, for example, 302927 + ... + 303026.

Almost surely, 2^30297650 is an apocalyptic number.

30297650 is a deficient number, since it is larger than the sum of its proper divisors (26056072).

30297650 is a wasteful number, since it uses less digits than its factorization.

30297650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605965 (or 605960 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 30297650 is about 5504.3301136469. The cubic root of 30297650 is about 311.7475014414.

The spelling of 30297650 in words is "thirty million, two hundred ninety-seven thousand, six hundred fifty".