41992221 has 4 divisors (see below), whose sum is σ = 55989632. Its totient is φ = 27994812.

The previous prime is 41992211. The next prime is 41992229. The reversal of 41992221 is 12229914.

It is a happy number.

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 41992221 - 2⁵ = 41992189 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 (41992229) 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, 6998701 + ... + 6998706.

It is an arithmetic number, because the mean of its divisors is an integer number (13997408).

Almost surely, 2^41992221 is an apocalyptic number.

It is an amenable number.

41992221 is a deficient number, since it is larger than the sum of its proper divisors (13997411).

41992221 is a wasteful number, since it uses less digits than its factorization.

41992221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13997410.

The product of its digits is 2592, while the sum is 30.

The square root of 41992221 is about 6480.1405077359. The cubic root of 41992221 is about 347.5812028372.

The spelling of 41992221 in words is "forty-one million, nine hundred ninety-two thousand, two hundred twenty-one".