30212086 has 4 divisors (see below), whose sum is σ = 45318132. Its totient is φ = 15106042.

The previous prime is 30212057. The next prime is 30212089. The reversal of 30212086 is 68021203.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7553020 + ... + 7553023.

It is an arithmetic number, because the mean of its divisors is an integer number (11329533).

Almost surely, 2^30212086 is an apocalyptic number.

30212086 is a deficient number, since it is larger than the sum of its proper divisors (15106046).

30212086 is a wasteful number, since it uses less digits than its factorization.

30212086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15106045.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30212086 is about 5496.5521920564. The cubic root of 30212086 is about 311.4537546419.

Adding to 30212086 its reverse (68021203), we get a palindrome (98233289).

The spelling of 30212086 in words is "thirty million, two hundred twelve thousand, eighty-six".