41228981 has 4 divisors (see below), whose sum is σ = 42650700. Its totient is φ = 39807264.

The previous prime is 41228969. The next prime is 41228987. The reversal of 41228981 is 18982214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15928081 + 25300900 = 3991^2 + 5030^2 .

It is a cyclic number.

It is not a de Polignac number, because 41228981 - 2¹⁰ = 41227957 is a prime.

It is a super-2 number, since 2×41228981² = 3399657748596722, 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 (41228987) 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, 710816 + ... + 710873.

It is an arithmetic number, because the mean of its divisors is an integer number (10662675).

Almost surely, 2^41228981 is an apocalyptic number.

It is an amenable number.

41228981 is a deficient number, since it is larger than the sum of its proper divisors (1421719).

41228981 is a wasteful number, since it uses less digits than its factorization.

41228981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421718.

The product of its digits is 9216, while the sum is 35.

The square root of 41228981 is about 6420.9797539005. The cubic root of 41228981 is about 345.4624645859.

The spelling of 41228981 in words is "forty-one million, two hundred twenty-eight thousand, nine hundred eighty-one".