30018769 has 6 divisors (see below), whose sum is σ = 32995970. Its totient is φ = 27289680.

The previous prime is 30018761. The next prime is 30018817. The reversal of 30018769 is 96781003.

It can be written as a sum of positive squares in only one way, i.e., 27878400 + 2140369 = 5280^2 + 1463^2 .

It is not a de Polignac number, because 30018769 - 2³ = 30018761 is a prime.

It is a super-2 number, since 2×30018769² = 1802252984550722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30018761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123924 + ... + 124165.

Almost surely, 2^30018769 is an apocalyptic number.

It is an amenable number.

30018769 is a deficient number, since it is larger than the sum of its proper divisors (2977201).

30018769 is a wasteful number, since it uses less digits than its factorization.

30018769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248111 (or 248100 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 30018769 is about 5478.9386745975. The cubic root of 30018769 is about 310.7880366942.

The spelling of 30018769 in words is "thirty million, eighteen thousand, seven hundred sixty-nine".