9775240 has 16 divisors (see below), whose sum is σ = 21994380. Its totient is φ = 3910080.

The previous prime is 9775231. The next prime is 9775243. The reversal of 9775240 is 425779.

It can be written as a sum of positive squares in 2 ways, for example, as 9771876 + 3364 = 3126^2 + 58^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9775196 and 9775205.

It is not an unprimeable number, because it can be changed into a prime (9775243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122151 + ... + 122230.

Almost surely, 2^9775240 is an apocalyptic number.

It is an amenable number.

9775240 is an abundant number, since it is smaller than the sum of its proper divisors (12219140).

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

9775240 is a wasteful number, since it uses less digits than its factorization.

9775240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244392 (or 244388 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 9775240 is about 3126.5380215184. The cubic root of 9775240 is about 213.8171203777.

The spelling of 9775240 in words is "nine million, seven hundred seventy-five thousand, two hundred forty".