44549819 has 2 divisors, whose sum is σ = 44549820. Its totient is φ = 44549818.

The previous prime is 44549807. The next prime is 44549837. The reversal of 44549819 is 91894544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44549819 - 2⁴ = 44549803 is a prime.

It is a super-2 number, since 2×44549819² = 3969372745865522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44549819.

It is not a weakly prime, because it can be changed into another prime (44549719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22274909 + 22274910.

It is an arithmetic number, because the mean of its divisors is an integer number (22274910).

Almost surely, 2^44549819 is an apocalyptic number.

44549819 is a deficient number, since it is larger than the sum of its proper divisors (1).

44549819 is an equidigital number, since it uses as much as digits as its factorization.

44549819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 44549819 is about 6674.5650794640. The cubic root of 44549819 is about 354.4992450464.

The spelling of 44549819 in words is "forty-four million, five hundred forty-nine thousand, eight hundred nineteen".