30243236 has 6 divisors (see below), whose sum is σ = 52925670. Its totient is φ = 15121616.

The previous prime is 30243211. The next prime is 30243247. The reversal of 30243236 is 63234203.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 649636 = 5440^2 + 806^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3780401 + ... + 3780408.

It is an arithmetic number, because the mean of its divisors is an integer number (8820945).

Almost surely, 2^30243236 is an apocalyptic number.

It is an amenable number.

30243236 is a deficient number, since it is larger than the sum of its proper divisors (22682434).

30243236 is a wasteful number, since it uses less digits than its factorization.

30243236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7560813 (or 7560811 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 30243236 is about 5499.3850565313. The cubic root of 30243236 is about 311.5607587510.

Adding to 30243236 its reverse (63234203), we get a palindrome (93477439).

The spelling of 30243236 in words is "thirty million, two hundred forty-three thousand, two hundred thirty-six".