41816981 has 8 divisors (see below), whose sum is σ = 42799104. Its totient is φ = 40838800.

The previous prime is 41816963. The next prime is 41816987. The reversal of 41816981 is 18961814.

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

It is a cyclic number.

It is not a de Polignac number, because 41816981 - 2¹⁴ = 41800597 is a prime.

It is a super-2 number, since 2×41816981² = 3497319799908722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41816987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35756 + ... + 36906.

It is an arithmetic number, because the mean of its divisors is an integer number (5349888).

Almost surely, 2^41816981 is an apocalyptic number.

It is an amenable number.

41816981 is a deficient number, since it is larger than the sum of its proper divisors (982123).

41816981 is a wasteful number, since it uses less digits than its factorization.

41816981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971.

The product of its digits is 13824, while the sum is 38.

The square root of 41816981 is about 6466.6050598440. The cubic root of 41816981 is about 347.0970254139.

The spelling of 41816981 in words is "forty-one million, eight hundred sixteen thousand, nine hundred eighty-one".