30253236 has 48 divisors (see below), whose sum is σ = 76910400. Its totient is φ = 9199872.

The previous prime is 30253231. The next prime is 30253243. The reversal of 30253236 is 63235203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30253231) 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, 12795 + ... + 14973.

It is an arithmetic number, because the mean of its divisors is an integer number (1602300).

Almost surely, 2^30253236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30253236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38455200).

30253236 is an abundant number, since it is smaller than the sum of its proper divisors (46657164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30253236 is a wasteful number, since it uses less digits than its factorization.

30253236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 30253236 is about 5500.2941739511. The cubic root of 30253236 is about 311.5950944094.

Adding to 30253236 its reverse (63235203), we get a palindrome (93488439).

The spelling of 30253236 in words is "thirty million, two hundred fifty-three thousand, two hundred thirty-six".