30252789 has 12 divisors (see below), whose sum is σ = 49941216. Its totient is φ = 17287272.

The previous prime is 30252763. The next prime is 30252823. The reversal of 30252789 is 98725203.

It is a happy number.

It is not a de Polignac number, because 30252789 - 2⁵ = 30252757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30252709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240039 + ... + 240164.

It is an arithmetic number, because the mean of its divisors is an integer number (4161768).

Almost surely, 2^30252789 is an apocalyptic number.

It is an amenable number.

30252789 is a deficient number, since it is larger than the sum of its proper divisors (19688427).

30252789 is a wasteful number, since it uses less digits than its factorization.

30252789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480216 (or 480213 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 30252789 is about 5500.2535396107. The cubic root of 30252789 is about 311.5935597670.

The spelling of 30252789 in words is "thirty million, two hundred fifty-two thousand, seven hundred eighty-nine".