9272240 has 20 divisors (see below), whose sum is σ = 21558144. Its totient is φ = 3708864.

The previous prime is 9272239. The next prime is 9272279. The reversal of 9272240 is 422729.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 9⁵ + 2¹⁰ + 7⁷ + 2²² + 2²² + 4² + 0 .

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 3 ways as a sum of consecutive naturals, for example, 57872 + ... + 58031.

Almost surely, 2^9272240 is an apocalyptic number.

It is an amenable number.

9272240 is an abundant number, since it is smaller than the sum of its proper divisors (12285904).

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

9272240 is a wasteful number, since it uses less digits than its factorization.

9272240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115916 (or 115910 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 9272240 is about 3045.0353035720. The cubic root of 9272240 is about 210.0849240799.

Adding to 9272240 its reverse (422729), we get a palindrome (9694969).

The spelling of 9272240 in words is "nine million, two hundred seventy-two thousand, two hundred forty".