421067405 has 16 divisors (see below), whose sum is σ = 555432768. Its totient is φ = 303888000.

The previous prime is 421067401. The next prime is 421067419. The reversal of 421067405 is 504760124.

It is not a de Polignac number, because 421067405 - 2² = 421067401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421067401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22016 + ... + 36425.

It is an arithmetic number, because the mean of its divisors is an integer number (34714548).

Almost surely, 2^421067405 is an apocalyptic number.

It is an amenable number.

421067405 is a deficient number, since it is larger than the sum of its proper divisors (134365363).

421067405 is a wasteful number, since it uses less digits than its factorization.

421067405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58588.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 421067405 is about 20519.9270222874. The cubic root of 421067405 is about 749.5211194815.

The spelling of 421067405 in words is "four hundred twenty-one million, sixty-seven thousand, four hundred five".