30644066 has 8 divisors (see below), whose sum is σ = 47208540. Its totient is φ = 14907888.

The previous prime is 30644063. The next prime is 30644071. The reversal of 30644066 is 66044603.

It can be written as a sum of positive squares in 2 ways, for example, as 26822041 + 3822025 = 5179^2 + 1955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30644063) 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, 206981 + ... + 207128.

Almost surely, 2^30644066 is an apocalyptic number.

30644066 is a deficient number, since it is larger than the sum of its proper divisors (16564474).

30644066 is a wasteful number, since it uses less digits than its factorization.

30644066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414148.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 30644066 is about 5535.7082654345. The cubic root of 30644066 is about 312.9311501570.

Adding to 30644066 its reverse (66044603), we get a palindrome (96688669).

The spelling of 30644066 in words is "thirty million, six hundred forty-four thousand, sixty-six".