44132561 has 32 divisors (see below), whose sum is σ = 55074816. Its totient is φ = 34848000.

The previous prime is 44132551. The next prime is 44132563. The reversal of 44132561 is 16523144.

It is a de Polignac number, because none of the positive numbers 2^k-44132561 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44132561.

It is not an unprimeable number, because it can be changed into a prime (44132563) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 133166 + ... + 133496.

It is an arithmetic number, because the mean of its divisors is an integer number (1721088).

Almost surely, 2^44132561 is an apocalyptic number.

It is an amenable number.

44132561 is a deficient number, since it is larger than the sum of its proper divisors (10942255).

44132561 is a wasteful number, since it uses less digits than its factorization.

44132561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413.

The product of its digits is 2880, while the sum is 26.

The square root of 44132561 is about 6643.2342273926. The cubic root of 44132561 is about 353.3890133169.

The spelling of 44132561 in words is "forty-four million, one hundred thirty-two thousand, five hundred sixty-one".