30106406 has 8 divisors (see below), whose sum is σ = 49265064. Its totient is φ = 13684720.

The previous prime is 30106403. The next prime is 30106421. The reversal of 30106406 is 60460103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30106403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684215 + ... + 684258.

It is an arithmetic number, because the mean of its divisors is an integer number (6158133).

Almost surely, 2^30106406 is an apocalyptic number.

30106406 is a deficient number, since it is larger than the sum of its proper divisors (19158658).

30106406 is a wasteful number, since it uses less digits than its factorization.

30106406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368486.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30106406 is about 5486.9304715843. The cubic root of 30106406 is about 311.0901817648.

Adding to 30106406 its reverse (60460103), we get a palindrome (90566509).

The spelling of 30106406 in words is "thirty million, one hundred six thousand, four hundred six".