41938509 has 4 divisors (see below), whose sum is σ = 55918016. Its totient is φ = 27959004.

The previous prime is 41938469. The next prime is 41938517. The reversal of 41938509 is 90583914.

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 not a de Polignac number, because 41938509 - 2¹⁵ = 41905741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41938409) 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, 6989749 + ... + 6989754.

It is an arithmetic number, because the mean of its divisors is an integer number (13979504).

Almost surely, 2^41938509 is an apocalyptic number.

It is an amenable number.

41938509 is a deficient number, since it is larger than the sum of its proper divisors (13979507).

41938509 is a wasteful number, since it uses less digits than its factorization.

41938509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979506.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 41938509 is about 6475.9948270517. The cubic root of 41938509 is about 347.4329432572.

The spelling of 41938509 in words is "forty-one million, nine hundred thirty-eight thousand, five hundred nine".