30852218 has 4 divisors (see below), whose sum is σ = 46278330. Its totient is φ = 15426108.

The previous prime is 30852197. The next prime is 30852233. The reversal of 30852218 is 81225803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81225803 = 397 ⋅204599.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 635209 = 5497^2 + 797^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7713053 + ... + 7713056.

Almost surely, 2^30852218 is an apocalyptic number.

30852218 is a deficient number, since it is larger than the sum of its proper divisors (15426112).

30852218 is a wasteful number, since it uses less digits than its factorization.

30852218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15426111.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 30852218 is about 5554.4772931393. The cubic root of 30852218 is about 313.6380876294.

The spelling of 30852218 in words is "thirty million, eight hundred fifty-two thousand, two hundred eighteen".