30152440 has 16 divisors (see below), whose sum is σ = 67843080. Its totient is φ = 12060960.

The previous prime is 30152413. The next prime is 30152443. The reversal of 30152440 is 4425103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30152443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376866 + ... + 376945.

Almost surely, 2^30152440 is an apocalyptic number.

It is an amenable number.

30152440 is an abundant number, since it is smaller than the sum of its proper divisors (37690640).

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

30152440 is a wasteful number, since it uses less digits than its factorization.

30152440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753822 (or 753818 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30152440 is about 5491.1237465568. The cubic root of 30152440 is about 311.2486578116.

Adding to 30152440 its reverse (4425103), we get a palindrome (34577543).

The spelling of 30152440 in words is "thirty million, one hundred fifty-two thousand, four hundred forty".