11542644 has 36 divisors (see below), whose sum is σ = 29536416. Its totient is φ = 3800208.

The previous prime is 11542639. The next prime is 11542651. The reversal of 11542644 is 44624511.

11542644 is a `hidden beast` number, since 1 + 15 + 4 + 2 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1057 + ... + 4919.

It is an arithmetic number, because the mean of its divisors is an integer number (820456).

Almost surely, 2^11542644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11542644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14768208).

11542644 is an abundant number, since it is smaller than the sum of its proper divisors (17993772).

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

11542644 is a wasteful number, since it uses less digits than its factorization.

11542644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956 (or 3951 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 11542644 is about 3397.4466883235. The cubic root of 11542644 is about 225.9965279964.

The spelling of 11542644 in words is "eleven million, five hundred forty-two thousand, six hundred forty-four".