30421050 has 96 divisors (see below), whose sum is σ = 83566080. Its totient is φ = 7262400.

The previous prime is 30421031. The next prime is 30421051. The reversal of 30421050 is 5012403.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (30421051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169861 + ... + 170039.

It is an arithmetic number, because the mean of its divisors is an integer number (870480).

Almost surely, 2^30421050 is an apocalyptic number.

30421050 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 30421050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41783040).

30421050 is an abundant number, since it is smaller than the sum of its proper divisors (53145030).

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

30421050 is a wasteful number, since it uses less digits than its factorization.

30421050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30421050 is about 5515.5280798850. The cubic root of 30421050 is about 312.1701693333.

Adding to 30421050 its reverse (5012403), we get a palindrome (35433453).

The spelling of 30421050 in words is "thirty million, four hundred twenty-one thousand, fifty".