11270920 has 32 divisors (see below), whose sum is σ = 26464320. Its totient is φ = 4312000.

The previous prime is 11270911. The next prime is 11270923. The reversal of 11270920 is 2907211.

It is a junction number, because it is equal to n+sod(n) for n = 11270891 and 11270900.

It is not an unprimeable number, because it can be changed into a prime (11270923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5206 + ... + 7045.

It is an arithmetic number, because the mean of its divisors is an integer number (827010).

Almost surely, 2^11270920 is an apocalyptic number.

11270920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11270920 is an abundant number, since it is smaller than the sum of its proper divisors (15193400).

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

11270920 is a wasteful number, since it uses less digits than its factorization.

11270920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12285 (or 12281 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 11270920 is about 3357.2190872804. The cubic root of 11270920 is about 224.2090416768.

It can be divided in two parts, 11270 and 920, that multiplied together give a square (10368400 = 3220²).

The spelling of 11270920 in words is "eleven million, two hundred seventy thousand, nine hundred twenty".