41378213 has 4 divisors (see below), whose sum is σ = 42158988. Its totient is φ = 40597440.

The previous prime is 41378209. The next prime is 41378231. The reversal of 41378213 is 31287314.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32239684 + 9138529 = 5678^2 + 3023^2 .

It is a cyclic number.

It is not a de Polignac number, because 41378213 - 2² = 41378209 is a prime.

It is a super-2 number, since 2×41378213² = 3424313022146738, 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 (41378243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390308 + ... + 390413.

It is an arithmetic number, because the mean of its divisors is an integer number (10539747).

Almost surely, 2^41378213 is an apocalyptic number.

It is an amenable number.

41378213 is a deficient number, since it is larger than the sum of its proper divisors (780775).

41378213 is an equidigital number, since it uses as much as digits as its factorization.

41378213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780774.

The product of its digits is 4032, while the sum is 29.

The square root of 41378213 is about 6432.5899138683. The cubic root of 41378213 is about 345.8787735070.

The spelling of 41378213 in words is "forty-one million, three hundred seventy-eight thousand, two hundred thirteen".