11649445 has 8 divisors (see below), whose sum is σ = 14461560. Its totient is φ = 8998080.

The previous prime is 11649439. The next prime is 11649461. The reversal of 11649445 is 54494611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3175524 + 8473921 = 1782^2 + 2911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11649445 - 2⁷ = 11649317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11649445.

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, 40026 + ... + 40315.

It is an arithmetic number, because the mean of its divisors is an integer number (1807695).

Almost surely, 2^11649445 is an apocalyptic number.

It is an amenable number.

11649445 is a deficient number, since it is larger than the sum of its proper divisors (2812115).

11649445 is an equidigital number, since it uses as much as digits as its factorization.

11649445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80375.

The product of its digits is 17280, while the sum is 34.

The square root of 11649445 is about 3413.1283304324. The cubic root of 11649445 is about 226.6914176644.

It can be divided in two parts, 1164 and 9445, that added together give a square (10609 = 103²).

The spelling of 11649445 in words is "eleven million, six hundred forty-nine thousand, four hundred forty-five".