30242872 has 32 divisors (see below), whose sum is σ = 62071920. Its totient is φ = 13699840.

The previous prime is 30242867. The next prime is 30242873. The reversal of 30242872 is 27824203.

It is a self number, because there is not a number n which added to its sum of digits gives 30242872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30242873) 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 7 ways as a sum of consecutive naturals, for example, 48708 + ... + 49324.

Almost surely, 2^30242872 is an apocalyptic number.

It is an amenable number.

30242872 is an abundant number, since it is smaller than the sum of its proper divisors (31829048).

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

30242872 is a wasteful number, since it uses less digits than its factorization.

30242872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 30242872 is about 5499.3519618224. The cubic root of 30242872 is about 311.5595087903.

It can be divided in two parts, 302428 and 72, that added together give a square (302500 = 550²).

The spelling of 30242872 in words is "thirty million, two hundred forty-two thousand, eight hundred seventy-two".