41721939 has 32 divisors (see below), whose sum is σ = 72929280. Its totient is φ = 23068800.

The previous prime is 41721907. The next prime is 41721941. The reversal of 41721939 is 93912714.

It is not a de Polignac number, because 41721939 - 2⁵ = 41721907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41721959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2299 + ... + 9419.

It is an arithmetic number, because the mean of its divisors is an integer number (2279040).

Almost surely, 2^41721939 is an apocalyptic number.

41721939 is a deficient number, since it is larger than the sum of its proper divisors (31207341).

41721939 is a wasteful number, since it uses less digits than its factorization.

41721939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7168 (or 7162 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 41721939 is about 6459.2522013001. The cubic root of 41721939 is about 346.8338642235.

The spelling of 41721939 in words is "forty-one million, seven hundred twenty-one thousand, nine hundred thirty-nine".