30640106 has 16 divisors (see below), whose sum is σ = 52684800. Its totient is φ = 13091760.

The previous prime is 30640087. The next prime is 30640111. The reversal of 30640106 is 60104603.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751 + ... + 8021.

It is an arithmetic number, because the mean of its divisors is an integer number (3292800).

Almost surely, 2^30640106 is an apocalyptic number.

30640106 is a deficient number, since it is larger than the sum of its proper divisors (22044694).

30640106 is a wasteful number, since it uses less digits than its factorization.

30640106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629.

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

The square root of 30640106 is about 5535.3505760701. The cubic root of 30640106 is about 312.9176699970.

Adding to 30640106 its reverse (60104603), we get a palindrome (90744709).

The spelling of 30640106 in words is "thirty million, six hundred forty thousand, one hundred six".