7271500228 has 12 divisors (see below), whose sum is σ = 12818010492. Its totient is φ = 3609211520.

The previous prime is 7271500211. The next prime is 7271500261. The reversal of 7271500228 is 8220051727.

It can be written as a sum of positive squares in 2 ways, for example, as 4855581124 + 2415919104 = 69682^2 + 49152^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7271500193 and 7271500202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6634033 + ... + 6635128.

It is an arithmetic number, because the mean of its divisors is an integer number (1068167541).

Almost surely, 2^7271500228 is an apocalyptic number.

It is an amenable number.

7271500228 is a deficient number, since it is larger than the sum of its proper divisors (5546510264).

7271500228 is a wasteful number, since it uses less digits than its factorization.

7271500228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13269302 (or 13269300 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 7271500228 is about 85273.0920513617. The cubic root of 7271500228 is about 1937.3496443739.

The spelling of 7271500228 in words is "seven billion, two hundred seventy-one million, five hundred thousand, two hundred twenty-eight".