405487400429 has 2 divisors, whose sum is σ = 405487400430. Its totient is φ = 405487400428.

The previous prime is 405487400399. The next prime is 405487400497. The reversal of 405487400429 is 924004784504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345477099529 + 60010300900 = 587773^2 + 244970^2 .

It is a cyclic number.

It is not a de Polignac number, because 405487400429 - 2¹² = 405487396333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405487100429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202743700214 + 202743700215.

It is an arithmetic number, because the mean of its divisors is an integer number (202743700215).

Almost surely, 2^405487400429 is an apocalyptic number.

It is an amenable number.

405487400429 is a deficient number, since it is larger than the sum of its proper divisors (1).

405487400429 is an equidigital number, since it uses as much as digits as its factorization.

405487400429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 405487400429 in words is "four hundred five billion, four hundred eighty-seven million, four hundred thousand, four hundred twenty-nine".