40021414289 has 2 divisors, whose sum is σ = 40021414290. Its totient is φ = 40021414288.

The previous prime is 40021414283. The next prime is 40021414361. The reversal of 40021414289 is 98241412004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39207168064 + 814246225 = 198008^2 + 28535^2 .

It is a cyclic number.

It is not a de Polignac number, because 40021414289 - 2⁴ = 40021414273 is a prime.

It is not a weakly prime, because it can be changed into another prime (40021414283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20010707144 + 20010707145.

It is an arithmetic number, because the mean of its divisors is an integer number (20010707145).

Almost surely, 2^40021414289 is an apocalyptic number.

It is an amenable number.

40021414289 is a deficient number, since it is larger than the sum of its proper divisors (1).

40021414289 is an equidigital number, since it uses as much as digits as its factorization.

40021414289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 40021414289 in words is "forty billion, twenty-one million, four hundred fourteen thousand, two hundred eighty-nine".