11280530 has 16 divisors (see below), whose sum is σ = 20551104. Its totient is φ = 4457520.

The previous prime is 11280527. The next prime is 11280569. The reversal of 11280530 is 3508211.

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, 5966 + ... + 7625.

It is an arithmetic number, because the mean of its divisors is an integer number (1284444).

Almost surely, 2^11280530 is an apocalyptic number.

11280530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11280530 is a deficient number, since it is larger than the sum of its proper divisors (9270574).

11280530 is a wasteful number, since it uses less digits than its factorization.

11280530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13681.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 11280530 is about 3358.6500264243. The cubic root of 11280530 is about 224.2727465268.

Adding to 11280530 its reverse (3508211), we get a palindrome (14788741).

The spelling of 11280530 in words is "eleven million, two hundred eighty thousand, five hundred thirty".