11304215 has 16 divisors (see below), whose sum is σ = 14853216. Its totient is φ = 8208000.

The previous prime is 11304199. The next prime is 11304217. The reversal of 11304215 is 51240311.

It is not a de Polignac number, because 11304215 - 2⁴ = 11304199 is a prime.

It is a super-3 number, since 3×11304215³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11304193 and 11304202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11304217) 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, 2540 + ... + 5390.

It is an arithmetic number, because the mean of its divisors is an integer number (928326).

Almost surely, 2^11304215 is an apocalyptic number.

11304215 is a deficient number, since it is larger than the sum of its proper divisors (3549001).

11304215 is a wasteful number, since it uses less digits than its factorization.

11304215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11304215 is about 3362.1741477800. The cubic root of 11304215 is about 224.4296004644.

Adding to 11304215 its reverse (51240311), we get a palindrome (62544526).

The spelling of 11304215 in words is "eleven million, three hundred four thousand, two hundred fifteen".