40420033441 has 2 divisors, whose sum is σ = 40420033442. Its totient is φ = 40420033440.

The previous prime is 40420033399. The next prime is 40420033463. The reversal of 40420033441 is 14433002404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20391840000 + 20028193441 = 142800^2 + 141521^2 .

It is a cyclic number.

It is not a de Polignac number, because 40420033441 - 2³³ = 31830098849 is a prime.

It is not a weakly prime, because it can be changed into another prime (40420033471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20210016720 + 20210016721.

It is an arithmetic number, because the mean of its divisors is an integer number (20210016721).

Almost surely, 2^40420033441 is an apocalyptic number.

It is an amenable number.

40420033441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40420033441 is an equidigital number, since it uses as much as digits as its factorization.

40420033441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40420033441 its reverse (14433002404), we get a palindrome (54853035845).

The spelling of 40420033441 in words is "forty billion, four hundred twenty million, thirty-three thousand, four hundred forty-one".