30534144 has 80 divisors (see below), whose sum is σ = 82560192. Its totient is φ = 10027008.

The previous prime is 30534137. The next prime is 30534151. The reversal of 30534144 is 44143503.

It is an interprime number because it is at equal distance from previous prime (30534137) and next prime (30534151).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158112 + ... + 158304.

Almost surely, 2^30534144 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 30534144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41280096).

30534144 is an abundant number, since it is smaller than the sum of its proper divisors (52026048).

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

30534144 is a wasteful number, since it uses less digits than its factorization.

30534144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 30534144 is about 5525.7708964451. The cubic root of 30534144 is about 312.5565346250.

Adding to 30534144 its reverse (44143503), we get a palindrome (74677647).

The spelling of 30534144 in words is "thirty million, five hundred thirty-four thousand, one hundred forty-four".