11270840 has 32 divisors (see below), whose sum is σ = 28982880. Its totient is φ = 3864192.

The previous prime is 11270839. The next prime is 11270843. The reversal of 11270840 is 4807211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11270843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19847 + ... + 20406.

It is an arithmetic number, because the mean of its divisors is an integer number (905715).

Almost surely, 2^11270840 is an apocalyptic number.

11270840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11270840 is an abundant number, since it is smaller than the sum of its proper divisors (17712040).

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

11270840 is a wasteful number, since it uses less digits than its factorization.

11270840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40271 (or 40267 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 11270840 is about 3357.2071726362. The cubic root of 11270840 is about 224.2085112035.

The spelling of 11270840 in words is "eleven million, two hundred seventy thousand, eight hundred forty".