11265720 has 64 divisors (see below), whose sum is σ = 34020000. Its totient is φ = 2984448.

The previous prime is 11265707. The next prime is 11265721. The reversal of 11265720 is 2756211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11265721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32106 + ... + 32454.

Almost surely, 2^11265720 is an apocalyptic number.

11265720 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 11265720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17010000).

11265720 is an abundant number, since it is smaller than the sum of its proper divisors (22754280).

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

11265720 is a wasteful number, since it uses less digits than its factorization.

11265720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 11265720 is about 3356.4445474341. Note that the first 3 decimals coincide. The cubic root of 11265720 is about 224.1745556910.

The spelling of 11265720 in words is "eleven million, two hundred sixty-five thousand, seven hundred twenty".