11649320 has 32 divisors (see below), whose sum is σ = 26373600. Its totient is φ = 4630848.

The previous prime is 11649317. The next prime is 11649349. The reversal of 11649320 is 2394611.

It is a self number, because there is not a number n which added to its sum of digits gives 11649320.

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, 6347 + ... + 7973.

It is an arithmetic number, because the mean of its divisors is an integer number (824175).

Almost surely, 2^11649320 is an apocalyptic number.

11649320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11649320 is an abundant number, since it is smaller than the sum of its proper divisors (14724280).

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

11649320 is a wasteful number, since it uses less digits than its factorization.

11649320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 11649320 is about 3413.1100187366. The cubic root of 11649320 is about 226.6906068524.

The spelling of 11649320 in words is "eleven million, six hundred forty-nine thousand, three hundred twenty".