30223240 has 32 divisors (see below), whose sum is σ = 68684760. Its totient is φ = 11968000.

The previous prime is 30223211. The next prime is 30223261. The reversal of 30223240 is 4232203.

It can be written as a sum of positive squares in 4 ways, for example, as 30184036 + 39204 = 5494^2 + 198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300 + ... + 7780.

Almost surely, 2^30223240 is an apocalyptic number.

It is an amenable number.

30223240 is an abundant number, since it is smaller than the sum of its proper divisors (38461520).

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

30223240 is a wasteful number, since it uses less digits than its factorization.

30223240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593 (or 7589 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30223240 is about 5497.5667344744. The cubic root of 30223240 is about 311.4920784631.

Adding to 30223240 its reverse (4232203), we get a palindrome (34455443).

The spelling of 30223240 in words is "thirty million, two hundred twenty-three thousand, two hundred forty".