30402572 has 12 divisors (see below), whose sum is σ = 53251296. Its totient is φ = 15187920.

The previous prime is 30402571. The next prime is 30402601. The reversal of 30402572 is 27520403.

It is not an unprimeable number, because it can be changed into a prime (30402571) 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, 3197 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (4437608).

Almost surely, 2^30402572 is an apocalyptic number.

It is an amenable number.

30402572 is a deficient number, since it is larger than the sum of its proper divisors (22848724).

30402572 is a wasteful number, since it uses less digits than its factorization.

30402572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688 (or 6686 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30402572 is about 5513.8527365174. The cubic root of 30402572 is about 312.1069516087.

Adding to 30402572 its reverse (27520403), we get a palindrome (57922975).

The spelling of 30402572 in words is "thirty million, four hundred two thousand, five hundred seventy-two".