44098561 has 16 divisors (see below), whose sum is σ = 51652944. Its totient is φ = 37269504.

The previous prime is 44098559. The next prime is 44098583. The reversal of 44098561 is 16589044.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8814961 + 35283600 = 2969^2 + 5940^2 .

It is a cyclic number.

It is not a de Polignac number, because 44098561 - 2¹ = 44098559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 44098561.

It is not an unprimeable number, because it can be changed into a prime (44098541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5481 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (3228309).

Almost surely, 2^44098561 is an apocalyptic number.

It is an amenable number.

44098561 is a deficient number, since it is larger than the sum of its proper divisors (7554383).

44098561 is a wasteful number, since it uses less digits than its factorization.

44098561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 44098561 is about 6640.6747398137. The cubic root of 44098561 is about 353.2982389692.

The spelling of 44098561 in words is "forty-four million, ninety-eight thousand, five hundred sixty-one".