30124432 has 20 divisors (see below), whose sum is σ = 62856220. Its totient is φ = 13903488.

The previous prime is 30124429. The next prime is 30124433. The reversal of 30124432 is 23442103.

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 24760576 = 2316^2 + 4976^2 .

It is not an unprimeable number, because it can be changed into a prime (30124433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72207 + ... + 72622.

It is an arithmetic number, because the mean of its divisors is an integer number (3142811).

Almost surely, 2^30124432 is an apocalyptic number.

It is an amenable number.

30124432 is an abundant number, since it is smaller than the sum of its proper divisors (32731788).

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

30124432 is a wasteful number, since it uses less digits than its factorization.

30124432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144850 (or 144844 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30124432 is about 5488.5728563990. The cubic root of 30124432 is about 311.1522570675.

Adding to 30124432 its reverse (23442103), we get a palindrome (53566535).

The spelling of 30124432 in words is "thirty million, one hundred twenty-four thousand, four hundred thirty-two".