30362420 has 48 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 10657920.

The previous prime is 30362419. The next prime is 30362467. The reversal of 30362420 is 2426303.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30362392 and 30362401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4001 + ... + 8759.

It is an arithmetic number, because the mean of its divisors is an integer number (1499400).

Almost surely, 2^30362420 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 30362420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35985600).

30362420 is an abundant number, since it is smaller than the sum of its proper divisors (41608780).

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

30362420 is a wasteful number, since it uses less digits than its factorization.

30362420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4806 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 30362420 is about 5510.2105222940. The cubic root of 30362420 is about 311.9694935108.

Adding to 30362420 its reverse (2426303), we get a palindrome (32788723).

The spelling of 30362420 in words is "thirty million, three hundred sixty-two thousand, four hundred twenty".