30285773 has 12 divisors (see below), whose sum is σ = 36446940. Its totient is φ = 25062912.

The previous prime is 30285769. The next prime is 30285793. The reversal of 30285773 is 37758203.

It can be written as a sum of positive squares in 2 ways, for example, as 11812969 + 18472804 = 3437^2 + 4298^2 .

It is not a de Polignac number, because 30285773 - 2² = 30285769 is a prime.

It is a super-3 number, since 3×30285773³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30285743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9236 + ... + 12077.

It is an arithmetic number, because the mean of its divisors is an integer number (3037245).

Almost surely, 2^30285773 is an apocalyptic number.

It is an amenable number.

30285773 is a deficient number, since it is larger than the sum of its proper divisors (6161167).

30285773 is a wasteful number, since it uses less digits than its factorization.

30285773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21356 (or 21349 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 30285773 is about 5503.2511300140. The cubic root of 30285773 is about 311.7067600087.

The spelling of 30285773 in words is "thirty million, two hundred eighty-five thousand, seven hundred seventy-three".