41778413 has 4 divisors (see below), whose sum is σ = 42750048. Its totient is φ = 40806780.

The previous prime is 41778409. The next prime is 41778433. The reversal of 41778413 is 31487714.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41778413 - 2² = 41778409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41778403) 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, 485753 + ... + 485838.

It is an arithmetic number, because the mean of its divisors is an integer number (10687512).

Almost surely, 2^41778413 is an apocalyptic number.

41778413 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

41778413 is a deficient number, since it is larger than the sum of its proper divisors (971635).

41778413 is an equidigital number, since it uses as much as digits as its factorization.

41778413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971634.

The product of its digits is 18816, while the sum is 35.

The square root of 41778413 is about 6463.6222816622. The cubic root of 41778413 is about 346.9902828463.

The spelling of 41778413 in words is "forty-one million, seven hundred seventy-eight thousand, four hundred thirteen".