9491140 has 12 divisors (see below), whose sum is σ = 19931436. Its totient is φ = 3796448.

The previous prime is 9491137. The next prime is 9491147. The reversal of 9491140 is 411949.

It can be written as a sum of positive squares in 2 ways, for example, as 5089536 + 4401604 = 2256^2 + 2098^2 .

It is a super-4 number, since 4×9491140⁴ (a number of 29 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9491099 and 9491108.

It is not an unprimeable number, because it can be changed into a prime (9491147) 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, 237259 + ... + 237298.

It is an arithmetic number, because the mean of its divisors is an integer number (1660953).

Almost surely, 2^9491140 is an apocalyptic number.

It is an amenable number.

9491140 is an abundant number, since it is smaller than the sum of its proper divisors (10440296).

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

9491140 is a wasteful number, since it uses less digits than its factorization.

9491140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474566 (or 474564 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 9491140 is about 3080.7693844233. The cubic root of 9491140 is about 211.7253176864.

The spelling of 9491140 in words is "nine million, four hundred ninety-one thousand, one hundred forty".