7275280 has 40 divisors (see below), whose sum is σ = 17034624. Its totient is φ = 2889600.

The previous prime is 7275263. The next prime is 7275283. The reversal of 7275280 is 825727.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×7275280³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7275283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16665 + ... + 17095.

Almost surely, 2^7275280 is an apocalyptic number.

It is an amenable number.

7275280 is an abundant number, since it is smaller than the sum of its proper divisors (9759344).

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

7275280 is a wasteful number, since it uses less digits than its factorization.

7275280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 7275280 is about 2697.2726966327. The cubic root of 7275280 is about 193.7685268444.

The spelling of 7275280 in words is "seven million, two hundred seventy-five thousand, two hundred eighty".