30205950 has 48 divisors (see below), whose sum is σ = 75255600. Its totient is φ = 8017920.

The previous prime is 30205939. The next prime is 30205961. The reversal of 30205950 is 5950203.

It is an interprime number because it is at equal distance from previous prime (30205939) and next prime (30205961).

It is a self number, because there is not a number n which added to its sum of digits gives 30205950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52062 + ... + 52638.

It is an arithmetic number, because the mean of its divisors is an integer number (1567825).

Almost surely, 2^30205950 is an apocalyptic number.

30205950 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 30205950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37627800).

30205950 is an abundant number, since it is smaller than the sum of its proper divisors (45049650).

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

30205950 is a wasteful number, since it uses less digits than its factorization.

30205950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 30205950 is about 5495.9939956299. The cubic root of 30205950 is about 311.4326680517.

The spelling of 30205950 in words is "thirty million, two hundred five thousand, nine hundred fifty".