30032144 has 10 divisors (see below), whose sum is σ = 58187310. Its totient is φ = 15016064.

The previous prime is 30032137. The next prime is 30032153. The reversal of 30032144 is 44123003.

It can be written as a sum of positive squares in only one way, i.e., 21270544 + 8761600 = 4612^2 + 2960^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 938489 + ... + 938520.

It is an arithmetic number, because the mean of its divisors is an integer number (5818731).

Almost surely, 2^30032144 is an apocalyptic number.

It is an amenable number.

30032144 is a deficient number, since it is larger than the sum of its proper divisors (28155166).

30032144 is a wasteful number, since it uses less digits than its factorization.

30032144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877017 (or 1877011 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30032144 is about 5480.1591217774. The cubic root of 30032144 is about 310.8341875183.

Adding to 30032144 its reverse (44123003), we get a palindrome (74155147).

The spelling of 30032144 in words is "thirty million, thirty-two thousand, one hundred forty-four".