30886296 has 64 divisors (see below), whose sum is σ = 88884480. Its totient is φ = 8760960.

The previous prime is 30886291. The next prime is 30886307. The reversal of 30886296 is 69268803.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30886291) 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 15 ways as a sum of consecutive naturals, for example, 25791 + ... + 26961.

It is an arithmetic number, because the mean of its divisors is an integer number (1388820).

Almost surely, 2^30886296 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 30886296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44442240).

30886296 is an abundant number, since it is smaller than the sum of its proper divisors (57998184).

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

30886296 is a wasteful number, since it uses less digits than its factorization.

30886296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 30886296 is about 5557.5440619036. The cubic root of 30886296 is about 313.7535220739.

The spelling of 30886296 in words is "thirty million, eight hundred eighty-six thousand, two hundred ninety-six".