41439869 has 8 divisors (see below), whose sum is σ = 43023960. Its totient is φ = 39866176.

The previous prime is 41439857. The next prime is 41439877. The reversal of 41439869 is 96893414.

It can be written as a sum of positive squares in 4 ways, for example, as 11868025 + 29571844 = 3445^2 + 5438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41439869 - 2⁸ = 41439613 is a prime.

It is a super-2 number, since 2×41439869² = 3434525485474322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41439569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6059 + ... + 10935.

It is an arithmetic number, because the mean of its divisors is an integer number (5377995).

Almost surely, 2^41439869 is an apocalyptic number.

It is an amenable number.

41439869 is a deficient number, since it is larger than the sum of its proper divisors (1584091).

41439869 is a wasteful number, since it uses less digits than its factorization.

41439869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199.

The product of its digits is 186624, while the sum is 44.

The square root of 41439869 is about 6437.3806008345. The cubic root of 41439869 is about 346.0504815693.

The spelling of 41439869 in words is "forty-one million, four hundred thirty-nine thousand, eight hundred sixty-nine".