11170840 has 32 divisors (see below), whose sum is σ = 25282080. Its totient is φ = 4442112.

The previous prime is 11170813. The next prime is 11170867. The reversal of 11170840 is 4807111.

It is an interprime number because it is at equal distance from previous prime (11170813) and next prime (11170867).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6997 + ... + 8443.

It is an arithmetic number, because the mean of its divisors is an integer number (790065).

Almost surely, 2^11170840 is an apocalyptic number.

11170840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11170840 is the 1930-th octagonal number.

It is an amenable number.

11170840 is an abundant number, since it is smaller than the sum of its proper divisors (14111240).

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

11170840 is a wasteful number, since it uses less digits than its factorization.

11170840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 11170840 is about 3342.2806584726. The cubic root of 11170840 is about 223.5434472204.

Adding to 11170840 its reverse (4807111), we get a palindrome (15977951).

The spelling of 11170840 in words is "eleven million, one hundred seventy thousand, eight hundred forty".