419709421 has 4 divisors (see below), whose sum is σ = 426823200. Its totient is φ = 412595644.

The previous prime is 419709419. The next prime is 419709427. The reversal of 419709421 is 124907914.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 419709421 - 2¹ = 419709419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419709427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3556801 + ... + 3556918.

It is an arithmetic number, because the mean of its divisors is an integer number (106705800).

Almost surely, 2^419709421 is an apocalyptic number.

It is an amenable number.

419709421 is a deficient number, since it is larger than the sum of its proper divisors (7113779).

419709421 is an equidigital number, since it uses as much as digits as its factorization.

419709421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113778.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 419709421 is about 20486.8109036033. The cubic root of 419709421 is about 748.7144918097.

The spelling of 419709421 in words is "four hundred nineteen million, seven hundred nine thousand, four hundred twenty-one".