30474919 has 4 divisors (see below), whose sum is σ = 30770896. Its totient is φ = 30178944.

The previous prime is 30474901. The next prime is 30474937. The reversal of 30474919 is 91947403.

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

It is an interprime number because it is at equal distance from previous prime (30474901) and next prime (30474937).

It is a cyclic number.

It is not a de Polignac number, because 30474919 - 2⁵ = 30474887 is a prime.

It is a super-2 number, since 2×30474919² = 1857441376113122, 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 (30474949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147834 + ... + 148039.

It is an arithmetic number, because the mean of its divisors is an integer number (7692724).

Almost surely, 2^30474919 is an apocalyptic number.

30474919 is a deficient number, since it is larger than the sum of its proper divisors (295977).

30474919 is a wasteful number, since it uses less digits than its factorization.

30474919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295976.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 30474919 is about 5520.4093145346. The cubic root of 30474919 is about 312.3543222868.

The spelling of 30474919 in words is "thirty million, four hundred seventy-four thousand, nine hundred nineteen".