30530806 has 4 divisors (see below), whose sum is σ = 45796212. Its totient is φ = 15265402.

The previous prime is 30530771. The next prime is 30530813. The reversal of 30530806 is 60803503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60803503 = 1051 ⋅57853.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7632700 + ... + 7632703.

It is an arithmetic number, because the mean of its divisors is an integer number (11449053).

Almost surely, 2^30530806 is an apocalyptic number.

30530806 is a deficient number, since it is larger than the sum of its proper divisors (15265406).

30530806 is a wasteful number, since it uses less digits than its factorization.

30530806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15265405.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30530806 is about 5525.4688488851. The cubic root of 30530806 is about 312.5451446246.

The spelling of 30530806 in words is "thirty million, five hundred thirty thousand, eight hundred six".