30421416 has 48 divisors (see below), whose sum is σ = 78645600. Its totient is φ = 9805920.

The previous prime is 30421411. The next prime is 30421423. The reversal of 30421416 is 61412403.

It is a junction number, because it is equal to n+sod(n) for n = 30421392 and 30421401.

It is not an unprimeable number, because it can be changed into a prime (30421411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22405 + ... + 23723.

It is an arithmetic number, because the mean of its divisors is an integer number (1638450).

Almost surely, 2^30421416 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 30421416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39322800).

30421416 is an abundant number, since it is smaller than the sum of its proper divisors (48224184).

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

30421416 is a wasteful number, since it uses less digits than its factorization.

30421416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 30421416 is about 5515.5612588385. The cubic root of 30421416 is about 312.1714212496.

Adding to 30421416 its reverse (61412403), we get a palindrome (91833819).

The spelling of 30421416 in words is "thirty million, four hundred twenty-one thousand, four hundred sixteen".