30519372 has 72 divisors (see below), whose sum is σ = 78397200. Its totient is φ = 9235200.

The previous prime is 30519347. The next prime is 30519373. The reversal of 30519372 is 27391503.

It is not an unprimeable number, because it can be changed into a prime (30519373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204754 + ... + 204902.

It is an arithmetic number, because the mean of its divisors is an integer number (1088850).

Almost surely, 2^30519372 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 30519372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39198600).

30519372 is an abundant number, since it is smaller than the sum of its proper divisors (47877828).

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

30519372 is a wasteful number, since it uses less digits than its factorization.

30519372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 30519372 is about 5524.4340886646. The cubic root of 30519372 is about 312.5061229734.

The spelling of 30519372 in words is "thirty million, five hundred nineteen thousand, three hundred seventy-two".