30040502 has 4 divisors (see below), whose sum is σ = 45060756. Its totient is φ = 15020250.

The previous prime is 30040481. The next prime is 30040511. The reversal of 30040502 is 20504003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20504003 = 13 ⋅1577231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7510124 + ... + 7510127.

It is an arithmetic number, because the mean of its divisors is an integer number (11265189).

Almost surely, 2^30040502 is an apocalyptic number.

30040502 is a deficient number, since it is larger than the sum of its proper divisors (15020254).

30040502 is a wasteful number, since it uses less digits than its factorization.

30040502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15020253.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 30040502 is about 5480.9216378270. The cubic root of 30040502 is about 310.8630200826.

Adding to 30040502 its reverse (20504003), we get a palindrome (50544505).

The spelling of 30040502 in words is "thirty million, forty thousand, five hundred two".