30928950 has 144 divisors (see below), whose sum is σ = 95056416. Its totient is φ = 7142400.

The previous prime is 30928939. The next prime is 30928981. The reversal of 30928950 is 5982903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99295 + ... + 99605.

It is an arithmetic number, because the mean of its divisors is an integer number (660114).

Almost surely, 2^30928950 is an apocalyptic number.

30928950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30928950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47528208).

30928950 is an abundant number, since it is smaller than the sum of its proper divisors (64127466).

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

30928950 is a wasteful number, since it uses less digits than its factorization.

30928950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 30928950 is about 5561.3802243688. The cubic root of 30928950 is about 313.8978869283.

It can be divided in two parts, 30928 and 950, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 30928950 in words is "thirty million, nine hundred twenty-eight thousand, nine hundred fifty".