41401891 has 4 divisors (see below), whose sum is σ = 41423800. Its totient is φ = 41379984.

The previous prime is 41401889. The next prime is 41401897. The reversal of 41401891 is 19810414.

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

It is a cyclic number.

It is not a de Polignac number, because 41401891 - 2¹ = 41401889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41401897) 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, 7821 + ... + 11998.

It is an arithmetic number, because the mean of its divisors is an integer number (10355950).

Almost surely, 2^41401891 is an apocalyptic number.

41401891 is a deficient number, since it is larger than the sum of its proper divisors (21909).

41401891 is a wasteful number, since it uses less digits than its factorization.

41401891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21908.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 41401891 is about 6434.4301223962. The cubic root of 41401891 is about 345.9447354014.

The spelling of 41401891 in words is "forty-one million, four hundred one thousand, eight hundred ninety-one".