30202144 has 48 divisors (see below), whose sum is σ = 68923008. Its totient is φ = 12759552.

The previous prime is 30202099. The next prime is 30202157. The reversal of 30202144 is 44120203.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15429 + ... + 17275.

It is an arithmetic number, because the mean of its divisors is an integer number (1435896).

Almost surely, 2^30202144 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 30202144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34461504).

30202144 is an abundant number, since it is smaller than the sum of its proper divisors (38720864).

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

30202144 is a wasteful number, since it uses less digits than its factorization.

30202144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937 (or 1929 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30202144 is about 5495.6477325243. The cubic root of 30202144 is about 311.4195871573.

Adding to 30202144 its reverse (44120203), we get a palindrome (74322347).

The spelling of 30202144 in words is "thirty million, two hundred two thousand, one hundred forty-four".