41991998 has 8 divisors (see below), whose sum is σ = 63018000. Its totient is φ = 20986000.

The previous prime is 41991977. The next prime is 41992019. The reversal of 41991998 is 89919914.

It is an interprime number because it is at equal distance from previous prime (41991977) and next prime (41992019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2498 + ... + 9498.

It is an arithmetic number, because the mean of its divisors is an integer number (7877250).

Almost surely, 2^41991998 is an apocalyptic number.

41991998 is a deficient number, since it is larger than the sum of its proper divisors (21026002).

41991998 is a wasteful number, since it uses less digits than its factorization.

41991998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10002.

The product of its digits is 209952, while the sum is 50.

The square root of 41991998 is about 6480.1233012960. The cubic root of 41991998 is about 347.5805875586.

The spelling of 41991998 in words is "forty-one million, nine hundred ninety-one thousand, nine hundred ninety-eight".