30133444 has 24 divisors (see below), whose sum is σ = 58262400. Its totient is φ = 13522080.

The previous prime is 30133421. The next prime is 30133463. The reversal of 30133444 is 44433103.

It is a super-2 number, since 2×30133444² = 1816048894602272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (2427600).

Almost surely, 2^30133444 is an apocalyptic number.

It is an amenable number.

30133444 is a deficient number, since it is larger than the sum of its proper divisors (28128956).

30133444 is a wasteful number, since it uses less digits than its factorization.

30133444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763 (or 8761 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 30133444 is about 5489.3937734508. The cubic root of 30133444 is about 311.1832819906.

Adding to 30133444 its reverse (44433103), we get a palindrome (74566547).

The spelling of 30133444 in words is "thirty million, one hundred thirty-three thousand, four hundred forty-four".