30252444 has 12 divisors (see below), whose sum is σ = 70589064. Its totient is φ = 10084144.

The previous prime is 30252433. The next prime is 30252449. The reversal of 30252444 is 44425203.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30252449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260507 + ... + 1260530.

It is an arithmetic number, because the mean of its divisors is an integer number (5882422).

Almost surely, 2^30252444 is an apocalyptic number.

It is an amenable number.

30252444 is an abundant number, since it is smaller than the sum of its proper divisors (40336620).

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

30252444 is a wasteful number, since it uses less digits than its factorization.

30252444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521044 (or 2521042 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 30252444 is about 5500.2221773307. Note that the first 3 decimals coincide. The cubic root of 30252444 is about 311.5923753011.

Adding to 30252444 its reverse (44425203), we get a palindrome (74677647).

The spelling of 30252444 in words is "thirty million, two hundred fifty-two thousand, four hundred forty-four".