41778445 has 4 divisors (see below), whose sum is σ = 50134140. Its totient is φ = 33422752.

The previous prime is 41778437. The next prime is 41778481. The reversal of 41778445 is 54487714.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54487714 = 2 ⋅27243857.

It can be written as a sum of positive squares in 2 ways, for example, as 12152196 + 29626249 = 3486^2 + 5443^2 .

It is a cyclic number.

It is not a de Polignac number, because 41778445 - 2³ = 41778437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 41778398 and 41778407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4177840 + ... + 4177849.

It is an arithmetic number, because the mean of its divisors is an integer number (12533535).

Almost surely, 2^41778445 is an apocalyptic number.

It is an amenable number.

41778445 is a deficient number, since it is larger than the sum of its proper divisors (8355695).

41778445 is an equidigital number, since it uses as much as digits as its factorization.

41778445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8355694.

The product of its digits is 125440, while the sum is 40.

The square root of 41778445 is about 6463.6247570539. The cubic root of 41778445 is about 346.9903714382.

The spelling of 41778445 in words is "forty-one million, seven hundred seventy-eight thousand, four hundred forty-five".