30240272 has 20 divisors (see below), whose sum is σ = 60611820. Its totient is φ = 14598528.

The previous prime is 30240271. The next prime is 30240289. The reversal of 30240272 is 27204203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4999696 + 25240576 = 2236^2 + 5024^2 .

It is not an unprimeable number, because it can be changed into a prime (30240271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32123 + ... + 33050.

It is an arithmetic number, because the mean of its divisors is an integer number (3030591).

Almost surely, 2^30240272 is an apocalyptic number.

It is an amenable number.

30240272 is an abundant number, since it is smaller than the sum of its proper divisors (30371548).

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

30240272 is a wasteful number, since it uses less digits than its factorization.

30240272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65210 (or 65204 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 30240272 is about 5499.1155652523. The cubic root of 30240272 is about 311.5505802077.

Adding to 30240272 its reverse (27204203), we get a palindrome (57444475).

The spelling of 30240272 in words is "thirty million, two hundred forty thousand, two hundred seventy-two".