11273920 has 84 divisors (see below), whose sum is σ = 31272480. Its totient is φ = 3859968.

The previous prime is 11273903. The next prime is 11273929. The reversal of 11273920 is 2937211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11273929) 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, 15321 + ... + 16039.

Almost surely, 2^11273920 is an apocalyptic number.

11273920 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 11273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15636240).

11273920 is an abundant number, since it is smaller than the sum of its proper divisors (19998560).

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

11273920 is an equidigital number, since it uses as much as digits as its factorization.

11273920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11273920 is about 3357.6658559184. The cubic root of 11273920 is about 224.2289326131.

The spelling of 11273920 in words is "eleven million, two hundred seventy-three thousand, nine hundred twenty".