30040546 has 4 divisors (see below), whose sum is σ = 45060822. Its totient is φ = 15020272.

The previous prime is 30040529. The next prime is 30040561. The reversal of 30040546 is 64504003.

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., 16313521 + 13727025 = 4039^2 + 3705^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7510135 + ... + 7510138.

Almost surely, 2^30040546 is an apocalyptic number.

30040546 is a deficient number, since it is larger than the sum of its proper divisors (15020276).

30040546 is a wasteful number, since it uses less digits than its factorization.

30040546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15020275.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30040546 is about 5480.9256517490. The cubic root of 30040546 is about 310.8631718551.

Adding to 30040546 its reverse (64504003), we get a palindrome (94544549).

The spelling of 30040546 in words is "thirty million, forty thousand, five hundred forty-six".