40412421443 has 2 divisors, whose sum is σ = 40412421444. Its totient is φ = 40412421442.

The previous prime is 40412421389. The next prime is 40412421449. The reversal of 40412421443 is 34412421404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40412421443 - 2¹² = 40412417347 is a prime.

It is not a weakly prime, because it can be changed into another prime (40412421449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20206210721 + 20206210722.

It is an arithmetic number, because the mean of its divisors is an integer number (20206210722).

Almost surely, 2^40412421443 is an apocalyptic number.

40412421443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40412421443 is an equidigital number, since it uses as much as digits as its factorization.

40412421443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 40412421443 its reverse (34412421404), we get a palindrome (74824842847).

The spelling of 40412421443 in words is "forty billion, four hundred twelve million, four hundred twenty-one thousand, four hundred forty-three".