30040606 has 4 divisors (see below), whose sum is σ = 45060912. Its totient is φ = 15020302.

The previous prime is 30040603. The next prime is 30040631. The reversal of 30040606 is 60604003.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7510150 + ... + 7510153.

It is an arithmetic number, because the mean of its divisors is an integer number (11265228).

Almost surely, 2^30040606 is an apocalyptic number.

30040606 is a deficient number, since it is larger than the sum of its proper divisors (15020306).

30040606 is a wasteful number, since it uses less digits than its factorization.

30040606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020305.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30040606 is about 5480.9311252742. The cubic root of 30040606 is about 310.8633788174.

Adding to 30040606 its reverse (60604003), we get a palindrome (90644609).

The spelling of 30040606 in words is "thirty million, forty thousand, six hundred six".