30022666 has 4 divisors (see below), whose sum is σ = 45034002. Its totient is φ = 15011332.

The previous prime is 30022649. The next prime is 30022667. The reversal of 30022666 is 66622003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28143025 + 1879641 = 5305^2 + 1371^2 .

It is a super-3 number, since 3×30022666³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30022666.

It is not an unprimeable number, because it can be changed into a prime (30022667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7505665 + ... + 7505668.

Almost surely, 2^30022666 is an apocalyptic number.

30022666 is a deficient number, since it is larger than the sum of its proper divisors (15011336).

30022666 is a wasteful number, since it uses less digits than its factorization.

30022666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011335.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 30022666 is about 5479.2942976263. The cubic root of 30022666 is about 310.8014848203.

Adding to 30022666 its reverse (66622003), we get a palindrome (96644669).

The spelling of 30022666 in words is "thirty million, twenty-two thousand, six hundred sixty-six".