30514572 has 72 divisors (see below), whose sum is σ = 84756672. Its totient is φ = 9180000.

The previous prime is 30514543. The next prime is 30514577. The reversal of 30514572 is 27541503.

It is a happy number.

It is a super-2 number, since 2×30514572² = 1862278208686368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30514577) 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 23 ways as a sum of consecutive naturals, for example, 99243 + ... + 99549.

It is an arithmetic number, because the mean of its divisors is an integer number (1177176).

Almost surely, 2^30514572 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 30514572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42378336).

30514572 is an abundant number, since it is smaller than the sum of its proper divisors (54242100).

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

30514572 is a wasteful number, since it uses less digits than its factorization.

30514572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 30514572 is about 5523.9996379435. Note that the first 3 decimals coincide. The cubic root of 30514572 is about 312.4897387564.

The spelling of 30514572 in words is "thirty million, five hundred fourteen thousand, five hundred seventy-two".