9159440 has 20 divisors (see below), whose sum is σ = 21295884. Its totient is φ = 3663744.

The previous prime is 9159433. The next prime is 9159457. The reversal of 9159440 is 449519.

It can be written as a sum of positive squares in 2 ways, for example, as 2274064 + 6885376 = 1508^2 + 2624^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×9159440² = 167790682227200, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9159397 and 9159406.

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, 57167 + ... + 57326.

Almost surely, 2^9159440 is an apocalyptic number.

It is an amenable number.

9159440 is an abundant number, since it is smaller than the sum of its proper divisors (12136444).

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

9159440 is a wasteful number, since it uses less digits than its factorization.

9159440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114506 (or 114500 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 9159440 is about 3026.4566740662. The cubic root of 9159440 is about 209.2295273748.

The spelling of 9159440 in words is "nine million, one hundred fifty-nine thousand, four hundred forty".