11275320 has 128 divisors (see below), whose sum is σ = 39997440. Its totient is φ = 2488320.

The previous prime is 11275309. The next prime is 11275367. The reversal of 11275320 is 2357211.

It is a super-2 number, since 2×11275320² = 254265682204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25824 + ... + 26256.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

Almost surely, 2^11275320 is an apocalyptic number.

11275320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11275320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19998720).

11275320 is an abundant number, since it is smaller than the sum of its proper divisors (28722120).

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

11275320 is a wasteful number, since it uses less digits than its factorization.

11275320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 11275320 is about 3357.8743276067. The cubic root of 11275320 is about 224.2382138425.

The spelling of 11275320 in words is "eleven million, two hundred seventy-five thousand, three hundred twenty".