30434144 has 48 divisors (see below), whose sum is σ = 65091600. Its totient is φ = 13923840.

The previous prime is 30434123. The next prime is 30434161. The reversal of 30434144 is 44143403.

It is a congruent number.

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, 61739 + ... + 62229.

It is an arithmetic number, because the mean of its divisors is an integer number (1356075).

Almost surely, 2^30434144 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 30434144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32545800).

30434144 is an abundant number, since it is smaller than the sum of its proper divisors (34657456).

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

30434144 is a wasteful number, since it uses less digits than its factorization.

30434144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 30434144 is about 5516.7149645419. The cubic root of 30434144 is about 312.2149515907.

Adding to 30434144 its reverse (44143403), we get a palindrome (74577547).

The spelling of 30434144 in words is "thirty million, four hundred thirty-four thousand, one hundred forty-four".