11270520 has 48 divisors (see below), whose sum is σ = 36630360. Its totient is φ = 3005376.

The previous prime is 11270513. The next prime is 11270521. The reversal of 11270520 is 2507211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11270493 and 11270502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11270521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15294 + ... + 16013.

Almost surely, 2^11270520 is an apocalyptic number.

11270520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11270520 is an abundant number, since it is smaller than the sum of its proper divisors (25359840).

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

11270520 is a wasteful number, since it uses less digits than its factorization.

11270520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31324 (or 31317 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 11270520 is about 3357.1595136365. The cubic root of 11270520 is about 224.2063892853.

Adding to 11270520 its reverse (2507211), we get a palindrome (13777731).

The spelling of 11270520 in words is "eleven million, two hundred seventy thousand, five hundred twenty".