11280776 has 32 divisors (see below), whose sum is σ = 23520000. Its totient is φ = 5037120.

The previous prime is 11280767. The next prime is 11280817. The reversal of 11280776 is 67708211.

11280776 = T₁₆₉ + T₁₇₀ + ... + T₄₁₆.

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, 1475 + ... + 4973.

It is an arithmetic number, because the mean of its divisors is an integer number (735000).

Almost surely, 2^11280776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11280776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11760000).

11280776 is an abundant number, since it is smaller than the sum of its proper divisors (12239224).

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

11280776 is a wasteful number, since it uses less digits than its factorization.

11280776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549 (or 3545 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 11280776 is about 3358.6866480814. The cubic root of 11280776 is about 224.2743767898.

Adding to 11280776 its reverse (67708211), we get a palindrome (78988987).

The spelling of 11280776 in words is "eleven million, two hundred eighty thousand, seven hundred seventy-six".