30218801 has 4 divisors (see below), whose sum is σ = 30233892. Its totient is φ = 30203712.

The previous prime is 30218779. The next prime is 30218813. The reversal of 30218801 is 10881203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10881203 = 1709 ⋅6367.

It can be written as a sum of positive squares in 2 ways, for example, as 21669025 + 8549776 = 4655^2 + 2924^2 .

It is a cyclic number.

It is not a de Polignac number, because 30218801 - 2⁶ = 30218737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30218101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3980 + ... + 8733.

It is an arithmetic number, because the mean of its divisors is an integer number (7558473).

Almost surely, 2^30218801 is an apocalyptic number.

It is an amenable number.

30218801 is a deficient number, since it is larger than the sum of its proper divisors (15091).

30218801 is a wasteful number, since it uses less digits than its factorization.

30218801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15090.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 30218801 is about 5497.1629955824. The cubic root of 30218801 is about 311.4768277153.

The spelling of 30218801 in words is "thirty million, two hundred eighteen thousand, eight hundred one".