30470550 has 96 divisors (see below), whose sum is σ = 84101760. Its totient is φ = 7238400.

The previous prime is 30470549. The next prime is 30470569. The reversal of 30470550 is 5507403.

It is a self number, because there is not a number n which added to its sum of digits gives 30470550.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 97194 + ... + 97506.

It is an arithmetic number, because the mean of its divisors is an integer number (876060).

Almost surely, 2^30470550 is an apocalyptic number.

30470550 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 30470550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42050880).

30470550 is an abundant number, since it is smaller than the sum of its proper divisors (53631210).

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

30470550 is a wasteful number, since it uses less digits than its factorization.

30470550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30470550 is about 5520.0135869398. The cubic root of 30470550 is about 312.3393948066.

Adding to 30470550 its reverse (5507403), we get a palindrome (35977953).

The spelling of 30470550 in words is "thirty million, four hundred seventy thousand, five hundred fifty".