7270928280 has 256 divisors, whose sum is σ = 30217190400. Its totient is φ = 1510824960.

The previous prime is 7270928257. The next prime is 7270928297. The reversal of 7270928280 is 828290727.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39444 + ... + 126876.

It is an arithmetic number, because the mean of its divisors is an integer number (118035900).

Almost surely, 2^7270928280 is an apocalyptic number.

7270928280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7270928280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15108595200).

7270928280 is an abundant number, since it is smaller than the sum of its proper divisors (22946262120).

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

7270928280 is a wasteful number, since it uses less digits than its factorization.

7270928280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87471 (or 87461 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 7270928280 is about 85269.7383601005. The cubic root of 7270928280 is about 1937.2988482395.

The spelling of 7270928280 in words is "seven billion, two hundred seventy million, nine hundred twenty-eight thousand, two hundred eighty".