30523452 has 12 divisors (see below), whose sum is σ = 71221416. Its totient is φ = 10174480.

The previous prime is 30523439. The next prime is 30523453. The reversal of 30523452 is 25432503.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×30523452² = 1863362243992608, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30523453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271799 + ... + 1271822.

It is an arithmetic number, because the mean of its divisors is an integer number (5935118).

Almost surely, 2^30523452 is an apocalyptic number.

It is an amenable number.

30523452 is an abundant number, since it is smaller than the sum of its proper divisors (40697964).

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

30523452 is a wasteful number, since it uses less digits than its factorization.

30523452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543628 (or 2543626 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 30523452 is about 5524.8033449165. The cubic root of 30523452 is about 312.5200482071.

Adding to 30523452 its reverse (25432503), we get a palindrome (55955955).

The spelling of 30523452 in words is "thirty million, five hundred twenty-three thousand, four hundred fifty-two".