30744160 has 96 divisors (see below), whose sum is σ = 78382080. Its totient is φ = 11354112.

The previous prime is 30744149. The next prime is 30744163. The reversal of 30744160 is 6144703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30744163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242017 + ... + 242143.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^30744160 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 30744160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39191040).

30744160 is an abundant number, since it is smaller than the sum of its proper divisors (47637920).

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

30744160 is a wasteful number, since it uses less digits than its factorization.

30744160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 30744160 is about 5544.7416531341. The cubic root of 30744160 is about 313.2714932534.

Adding to 30744160 its reverse (6144703), we get a palindrome (36888863).

The spelling of 30744160 in words is "thirty million, seven hundred forty-four thousand, one hundred sixty".