7290280 has 64 divisors (see below), whose sum is σ = 17729280. Its totient is φ = 2688000.

The previous prime is 7290271. The next prime is 7290289. The reversal of 7290280 is 820927.

It is an interprime number because it is at equal distance from previous prime (7290271) and next prime (7290289).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7290289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48205 + ... + 48355.

It is an arithmetic number, because the mean of its divisors is an integer number (277020).

Almost surely, 2^7290280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7290280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8864640).

7290280 is an abundant number, since it is smaller than the sum of its proper divisors (10439000).

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

7290280 is a wasteful number, since it uses less digits than its factorization.

7290280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 7290280 is about 2700.0518513540. The cubic root of 7290280 is about 193.9016045473.

The spelling of 7290280 in words is "seven million, two hundred ninety thousand, two hundred eighty".