30807243 has 8 divisors (see below), whose sum is σ = 45640400. Its totient is φ = 20538144.

The previous prime is 30807233. The next prime is 30807253. The reversal of 30807243 is 34270803.

It is an interprime number because it is at equal distance from previous prime (30807233) and next prime (30807253).

It is not a de Polignac number, because 30807243 - 2⁹ = 30806731 is a prime.

It is a super-2 number, since 2×30807243² = 1898172442522098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1141009 = 30807243 / (3 + 0 + 8 + 0 + 7 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30807223) 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 7 ways as a sum of consecutive naturals, for example, 570478 + ... + 570531.

It is an arithmetic number, because the mean of its divisors is an integer number (5705050).

Almost surely, 2^30807243 is an apocalyptic number.

30807243 is a deficient number, since it is larger than the sum of its proper divisors (14833157).

30807243 is a wasteful number, since it uses less digits than its factorization.

30807243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141018 (or 1141012 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30807243 is about 5550.4272808496. The cubic root of 30807243 is about 313.4856109327.

The spelling of 30807243 in words is "thirty million, eight hundred seven thousand, two hundred forty-three".