30242856 has 64 divisors (see below), whose sum is σ = 89210880. Its totient is φ = 8360640.

The previous prime is 30242843. The next prime is 30242867. The reversal of 30242856 is 65824203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2305 + ... + 8111.

It is an arithmetic number, because the mean of its divisors is an integer number (1393920).

Almost surely, 2^30242856 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 30242856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44605440).

30242856 is an abundant number, since it is smaller than the sum of its proper divisors (58968024).

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

30242856 is a wasteful number, since it uses less digits than its factorization.

30242856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854 (or 5850 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 30242856 is about 5499.3505071054. The cubic root of 30242856 is about 311.5594538467.

The spelling of 30242856 in words is "thirty million, two hundred forty-two thousand, eight hundred fifty-six".