11505330 has 24 divisors (see below), whose sum is σ = 29914092. Its totient is φ = 3068064.

The previous prime is 11505301. The next prime is 11505331. The reversal of 11505330 is 3350511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11148921 + 356409 = 3339^2 + 597^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11505331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63829 + ... + 64008.

Almost surely, 2^11505330 is an apocalyptic number.

11505330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11505330 is an abundant number, since it is smaller than the sum of its proper divisors (18408762).

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

11505330 is a wasteful number, since it uses less digits than its factorization.

11505330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127850 (or 127847 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 11505330 is about 3391.9507661521. The cubic root of 11505330 is about 225.7527381632.

Adding to 11505330 its reverse (3350511), we get a palindrome (14855841).

The spelling of 11505330 in words is "eleven million, five hundred five thousand, three hundred thirty".