30219294 has 32 divisors (see below), whose sum is σ = 69488640. Its totient is φ = 8582112.

The previous prime is 30219289. The next prime is 30219311. The reversal of 30219294 is 49291203.

It is a Curzon number.

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 in 15 ways as a sum of consecutive naturals, for example, 5187 + ... + 9345.

It is an arithmetic number, because the mean of its divisors is an integer number (2171520).

Almost surely, 2^30219294 is an apocalyptic number.

30219294 is an abundant number, since it is smaller than the sum of its proper divisors (39269346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30219294 is a wasteful number, since it uses less digits than its factorization.

30219294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 30219294 is about 5497.2078367113. The cubic root of 30219294 is about 311.4785215531.

The spelling of 30219294 in words is "thirty million, two hundred nineteen thousand, two hundred ninety-four".