40421141 has 2 divisors, whose sum is σ = 40421142. Its totient is φ = 40421140.

The previous prime is 40421137. The next prime is 40421153. The reversal of 40421141 is 14112404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24850225 + 15570916 = 4985^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 40421141 - 2² = 40421137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40424141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20210570 + 20210571.

It is an arithmetic number, because the mean of its divisors is an integer number (20210571).

Almost surely, 2^40421141 is an apocalyptic number.

It is an amenable number.

40421141 is a deficient number, since it is larger than the sum of its proper divisors (1).

40421141 is an equidigital number, since it uses as much as digits as its factorization.

40421141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 40421141 is about 6357.7622635641. The cubic root of 40421141 is about 343.1912365342.

Adding to 40421141 its reverse (14112404), we get a palindrome (54533545).

The spelling of 40421141 in words is "forty million, four hundred twenty-one thousand, one hundred forty-one".