11649542 has 12 divisors (see below), whose sum is σ = 17679948. Its totient is φ = 5757000.

The previous prime is 11649529. The next prime is 11649551. The reversal of 11649542 is 24594611.

It is a junction number, because it is equal to n+sod(n) for n = 11649499 and 11649508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20117 + ... + 20687.

It is an arithmetic number, because the mean of its divisors is an integer number (1473329).

Almost surely, 2^11649542 is an apocalyptic number.

11649542 is a deficient number, since it is larger than the sum of its proper divisors (6030406).

11649542 is an equidigital number, since it uses as much as digits as its factorization.

11649542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 674 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 11649542 is about 3413.1425402406. The cubic root of 11649542 is about 226.6920468505.

The spelling of 11649542 in words is "eleven million, six hundred forty-nine thousand, five hundred forty-two".