41007981 has 16 divisors (see below), whose sum is σ = 62639744. Its totient is φ = 23376384.

The previous prime is 41007977. The next prime is 41008027. The reversal of 41007981 is 18970014.

It is not a de Polignac number, because 41007981 - 2² = 41007977 is a prime.

It is a super-2 number, since 2×41007981² = 3363309011392722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41007931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7461 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (3914984).

Almost surely, 2^41007981 is an apocalyptic number.

It is an amenable number.

41007981 is a deficient number, since it is larger than the sum of its proper divisors (21631763).

41007981 is a wasteful number, since it uses less digits than its factorization.

41007981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 41007981 is about 6403.7474185043. The cubic root of 41007981 is about 344.8440967507.

Adding to 41007981 its reverse (18970014), we get a palindrome (59977995).

The spelling of 41007981 in words is "forty-one million, seven thousand, nine hundred eighty-one".