421434244432405 has 32 divisors (see below), whose sum is σ = 516339627971328. Its totient is φ = 330137065843200.

The previous prime is 421434244432349. The next prime is 421434244432433. The reversal of 421434244432405 is 504234442434124.

It is not a de Polignac number, because 421434244432405 - 2¹⁷ = 421434244301333 is a prime.

It is a super-2 number, since 2×421434244432405² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56100457 + ... + 63167473.

It is an arithmetic number, because the mean of its divisors is an integer number (16135613374104).

Almost surely, 2^{421434244432405} is an apocalyptic number.

It is an amenable number.

421434244432405 is a deficient number, since it is larger than the sum of its proper divisors (94905383538923).

421434244432405 is a wasteful number, since it uses less digits than its factorization.

421434244432405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068237.

The product of its (nonzero) digits is 5898240, while the sum is 46.

Adding to 421434244432405 its reverse (504234442434124), we get a palindrome (925668686866529).

The spelling of 421434244432405 in words is "four hundred twenty-one trillion, four hundred thirty-four billion, two hundred forty-four million, four hundred thirty-two thousand, four hundred five".