30288769 has 16 divisors (see below), whose sum is σ = 36357120. Its totient is φ = 24670800.

The previous prime is 30288763. The next prime is 30288773. The reversal of 30288769 is 96788203.

It is not a de Polignac number, because 30288769 - 2³ = 30288761 is a prime.

It is a super-2 number, since 2×30288769² = 1834819055070722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30288761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28294 + ... + 29344.

It is an arithmetic number, because the mean of its divisors is an integer number (2272320).

Almost surely, 2^30288769 is an apocalyptic number.

It is an amenable number.

30288769 is a deficient number, since it is larger than the sum of its proper divisors (6068351).

30288769 is a wasteful number, since it uses less digits than its factorization.

30288769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 30288769 is about 5503.5233260158. The cubic root of 30288769 is about 311.7170381313.

The spelling of 30288769 in words is "thirty million, two hundred eighty-eight thousand, seven hundred sixty-nine".