44156169 has 6 divisors (see below), whose sum is σ = 63781146. Its totient is φ = 29437440.

The previous prime is 44156137. The next prime is 44156179. The reversal of 44156169 is 96165144.

44156169 is a `hidden beast` number, since 441 + 56 + 169 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 144 = 6645^2 + 12^2 .

It is not a de Polignac number, because 44156169 - 2⁵ = 44156137 is a prime.

It is a super-2 number, since 2×44156169² = 3899534521513122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44156129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2453112 + ... + 2453129.

It is an arithmetic number, because the mean of its divisors is an integer number (10630191).

Almost surely, 2^44156169 is an apocalyptic number.

It is an amenable number.

44156169 is a deficient number, since it is larger than the sum of its proper divisors (19624977).

44156169 is a wasteful number, since it uses less digits than its factorization.

44156169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906247 (or 4906244 counting only the distinct ones).

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

The square root of 44156169 is about 6645.0108352056. The cubic root of 44156169 is about 353.4520153307.

It can be divided in two parts, 441 and 56169, that multiplied together give a square (24770529 = 4977²).

The spelling of 44156169 in words is "forty-four million, one hundred fifty-six thousand, one hundred sixty-nine".