11649546 has 48 divisors (see below), whose sum is σ = 27743040. Its totient is φ = 3516480.

The previous prime is 11649529. The next prime is 11649551. The reversal of 11649546 is 64594611.

11649546 is a `hidden beast` number, since 1 + 1 + 649 + 5 + 4 + 6 = 666.

It is a super-2 number, since 2×11649546² = 271423844012232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11649546.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7126 + ... + 8606.

It is an arithmetic number, because the mean of its divisors is an integer number (577980).

Almost surely, 2^11649546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11649546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13871520).

11649546 is an abundant number, since it is smaller than the sum of its proper divisors (16093494).

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

11649546 is a wasteful number, since it uses less digits than its factorization.

11649546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531 (or 1528 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 11649546 is about 3413.1431262108. The cubic root of 11649546 is about 226.6920727962.

The spelling of 11649546 in words is "eleven million, six hundred forty-nine thousand, five hundred forty-six".