30449223 has 32 divisors (see below), whose sum is σ = 53227520. Its totient is φ = 16835040.

The previous prime is 30449219. The next prime is 30449231. The reversal of 30449223 is 32294403.

It is a happy number.

It is not a de Polignac number, because 30449223 - 2² = 30449219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30449213) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3261 + ... + 8457.

It is an arithmetic number, because the mean of its divisors is an integer number (1663360).

Almost surely, 2^30449223 is an apocalyptic number.

30449223 is a deficient number, since it is larger than the sum of its proper divisors (22778297).

30449223 is a wasteful number, since it uses less digits than its factorization.

30449223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5244 (or 5238 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30449223 is about 5518.0814600729. The cubic root of 30449223 is about 312.2665067557.

The spelling of 30449223 in words is "thirty million, four hundred forty-nine thousand, two hundred twenty-three".