30504919 has 8 divisors (see below), whose sum is σ = 32518800. Its totient is φ = 28515456.

The previous prime is 30504893. The next prime is 30504949. The reversal of 30504919 is 91940503.

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

It is a cyclic number.

It is not a de Polignac number, because 30504919 - 2⁹ = 30504407 is a prime.

It is a super-2 number, since 2×30504919² = 1861100166393122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30504949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3489 + ... + 8554.

It is an arithmetic number, because the mean of its divisors is an integer number (4064850).

Almost surely, 2^30504919 is an apocalyptic number.

30504919 is a deficient number, since it is larger than the sum of its proper divisors (2013881).

30504919 is a wasteful number, since it uses less digits than its factorization.

30504919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12209.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 30504919 is about 5523.1258359737. The cubic root of 30504919 is about 312.4567842106.

The spelling of 30504919 in words is "thirty million, five hundred four thousand, nine hundred nineteen".