7228406560 has 24 divisors (see below), whose sum is σ = 17077110876. Its totient is φ = 2891362560.

The previous prime is 7228406551. The next prime is 7228406593. The reversal of 7228406560 is 656048227.

It can be written as a sum of positive squares in 2 ways, for example, as 6298644496 + 929762064 = 79364^2 + 30492^2 .

It is a super-2 number, since 2×7228406560² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22588611 + ... + 22588930.

Almost surely, 2^7228406560 is an apocalyptic number.

It is an amenable number.

7228406560 is an abundant number, since it is smaller than the sum of its proper divisors (9848704316).

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

7228406560 is a wasteful number, since it uses less digits than its factorization.

7228406560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45177556 (or 45177548 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 7228406560 is about 85020.0362267625. The cubic root of 7228406560 is about 1933.5149027518.

The spelling of 7228406560 in words is "seven billion, two hundred twenty-eight million, four hundred six thousand, five hundred sixty".