30040306 has 8 divisors (see below), whose sum is σ = 45228780. Its totient is φ = 14964048.

The previous prime is 30040267. The next prime is 30040363. The reversal of 30040306 is 60304003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29214025 + 826281 = 5405^2 + 909^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 30040306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27381 + ... + 28456.

Almost surely, 2^30040306 is an apocalyptic number.

30040306 is a deficient number, since it is larger than the sum of its proper divisors (15188474).

30040306 is a wasteful number, since it uses less digits than its factorization.

30040306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56108.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30040306 is about 5480.9037575933. The cubic root of 30040306 is about 310.8623440033.

Adding to 30040306 its reverse (60304003), we get a palindrome (90344309).

The spelling of 30040306 in words is "thirty million, forty thousand, three hundred six".