30352293 has 32 divisors (see below), whose sum is σ = 48211200. Its totient is φ = 18805248.

The previous prime is 30352277. The next prime is 30352337. The reversal of 30352293 is 39225303.

It is not a de Polignac number, because 30352293 - 2⁴ = 30352277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30352243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40480 + ... + 41222.

It is an arithmetic number, because the mean of its divisors is an integer number (1506600).

Almost surely, 2^30352293 is an apocalyptic number.

It is an amenable number.

30352293 is a deficient number, since it is larger than the sum of its proper divisors (17858907).

30352293 is a wasteful number, since it uses less digits than its factorization.

30352293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 30352293 is about 5509.2915152495. The cubic root of 30352293 is about 311.9348051650.

Adding to 30352293 its reverse (39225303), we get a palindrome (69577596).

The spelling of 30352293 in words is "thirty million, three hundred fifty-two thousand, two hundred ninety-three".