30015472 has 40 divisors (see below), whose sum is σ = 62045136. Its totient is φ = 14017536.

The previous prime is 30015457. The next prime is 30015481. The reversal of 30015472 is 27451003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43998 + ... + 44674.

Almost surely, 2^30015472 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 30015472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31022568).

30015472 is an abundant number, since it is smaller than the sum of its proper divisors (32029664).

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

30015472 is a wasteful number, since it uses less digits than its factorization.

30015472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30015472 is about 5478.6377868956. The cubic root of 30015472 is about 310.7766581943.

Adding to 30015472 its reverse (27451003), we get a palindrome (57466475).

The spelling of 30015472 in words is "thirty million, fifteen thousand, four hundred seventy-two".