11649830 has 16 divisors (see below), whose sum is σ = 21132144. Its totient is φ = 4623840.

The previous prime is 11649829. The next prime is 11649853. The reversal of 11649830 is 3894611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3137 + ... + 5756.

It is an arithmetic number, because the mean of its divisors is an integer number (1320759).

Almost surely, 2^11649830 is an apocalyptic number.

11649830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11649830 is a deficient number, since it is larger than the sum of its proper divisors (9482314).

11649830 is a wasteful number, since it uses less digits than its factorization.

11649830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9031.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 11649830 is about 3413.1847298381. The cubic root of 11649830 is about 226.6939149288.

The spelling of 11649830 in words is "eleven million, six hundred forty-nine thousand, eight hundred thirty".