30196820 has 12 divisors (see below), whose sum is σ = 63413364. Its totient is φ = 12078720.

The previous prime is 30196813. The next prime is 30196823. The reversal of 30196820 is 2869103.

It can be written as a sum of positive squares in 2 ways, for example, as 22165264 + 8031556 = 4708^2 + 2834^2 .

It is a super-2 number, since 2×30196820² = 1823695876224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30196823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754901 + ... + 754940.

It is an arithmetic number, because the mean of its divisors is an integer number (5284447).

Almost surely, 2^30196820 is an apocalyptic number.

It is an amenable number.

30196820 is an abundant number, since it is smaller than the sum of its proper divisors (33216544).

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

30196820 is a wasteful number, since it uses less digits than its factorization.

30196820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509850 (or 1509848 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 30196820 is about 5495.1633278730. The cubic root of 30196820 is about 311.4012871837.

The spelling of 30196820 in words is "thirty million, one hundred ninety-six thousand, eight hundred twenty".