11261920 has 48 divisors (see below), whose sum is σ = 27079920. Its totient is φ = 4424704.

The previous prime is 11261911. The next prime is 11261941. The reversal of 11261920 is 2916211.

It is a junction number, because it is equal to n+sod(n) for n = 11261891 and 11261900.

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, 8844 + ... + 10036.

It is an arithmetic number, because the mean of its divisors is an integer number (564165).

Almost surely, 2^11261920 is an apocalyptic number.

11261920 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 11261920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13539960).

11261920 is an abundant number, since it is smaller than the sum of its proper divisors (15818000).

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

11261920 is a wasteful number, since it uses less digits than its factorization.

11261920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 11261920 is about 3355.8784244963. The cubic root of 11261920 is about 224.1493476821.

The spelling of 11261920 in words is "eleven million, two hundred sixty-one thousand, nine hundred twenty".