30386020 has 48 divisors (see below), whose sum is σ = 73543680. Its totient is φ = 10329984.

The previous prime is 30386011. The next prime is 30386033. The reversal of 30386020 is 2068303.

It is a super-2 number, since 2×30386020² = 1846620422880800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30385982 and 30386000.

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, 16926 + ... + 18634.

It is an arithmetic number, because the mean of its divisors is an integer number (1532160).

Almost surely, 2^30386020 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 30386020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36771840).

30386020 is an abundant number, since it is smaller than the sum of its proper divisors (43157660).

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

30386020 is a wasteful number, since it uses less digits than its factorization.

30386020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30386020 is about 5512.3515853037. The cubic root of 30386020 is about 312.0503014450.

The spelling of 30386020 in words is "thirty million, three hundred eighty-six thousand, twenty".