11307285 has 48 divisors (see below), whose sum is σ = 21835008. Its totient is φ = 5366400.

The previous prime is 11307277. The next prime is 11307287. The reversal of 11307285 is 58270311.

It is not a de Polignac number, because 11307285 - 2³ = 11307277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11307287) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26020 + ... + 26450.

It is an arithmetic number, because the mean of its divisors is an integer number (454896).

Almost surely, 2^11307285 is an apocalyptic number.

11307285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11307285 is a deficient number, since it is larger than the sum of its proper divisors (10527723).

11307285 is a wasteful number, since it uses less digits than its factorization.

11307285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 11307285 is about 3362.6306666061. The cubic root of 11307285 is about 224.4499154976.

Adding to 11307285 its reverse (58270311), we get a palindrome (69577596).

The spelling of 11307285 in words is "eleven million, three hundred seven thousand, two hundred eighty-five".