30806224 has 10 divisors (see below), whose sum is σ = 59687090. Its totient is φ = 15403104.

The previous prime is 30806203. The next prime is 30806233. The reversal of 30806224 is 42260803.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29506624 + 1299600 = 5432^2 + 1140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962679 + ... + 962710.

It is an arithmetic number, because the mean of its divisors is an integer number (5968709).

Almost surely, 2^30806224 is an apocalyptic number.

It is an amenable number.

30806224 is a deficient number, since it is larger than the sum of its proper divisors (28880866).

30806224 is a wasteful number, since it uses less digits than its factorization.

30806224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925397 (or 1925391 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 30806224 is about 5550.3354853558. The cubic root of 30806224 is about 313.4821545447.

The spelling of 30806224 in words is "thirty million, eight hundred six thousand, two hundred twenty-four".