41781405 has 16 divisors (see below), whose sum is σ = 66942144. Its totient is φ = 22252800.

The previous prime is 41781391. The next prime is 41781407. The reversal of 41781405 is 50418714.

It is not a de Polignac number, because 41781405 - 2⁷ = 41781277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41781407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13230 + ... + 16080.

It is an arithmetic number, because the mean of its divisors is an integer number (4183884).

Almost surely, 2^41781405 is an apocalyptic number.

It is an amenable number.

41781405 is a deficient number, since it is larger than the sum of its proper divisors (25160739).

41781405 is a wasteful number, since it uses less digits than its factorization.

41781405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 41781405 is about 6463.8537266866. The cubic root of 41781405 is about 346.9985659927.

The spelling of 41781405 in words is "forty-one million, seven hundred eighty-one thousand, four hundred five".