419012021 has 4 divisors (see below), whose sum is σ = 419719212. Its totient is φ = 418304832.

The previous prime is 419012017. The next prime is 419012047. The reversal of 419012021 is 120210914.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98208100 + 320803921 = 9910^2 + 17911^2 .

It is a cyclic number.

It is not a de Polignac number, because 419012021 - 2² = 419012017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 419011984 and 419012002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419012051) 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, 352706 + ... + 353891.

It is an arithmetic number, because the mean of its divisors is an integer number (104929803).

Almost surely, 2^419012021 is an apocalyptic number.

It is an amenable number.

419012021 is a deficient number, since it is larger than the sum of its proper divisors (707191).

419012021 is an equidigital number, since it uses as much as digits as its factorization.

419012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707190.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 419012021 is about 20469.7831204925. The cubic root of 419012021 is about 748.2995674711.

Adding to 419012021 its reverse (120210914), we get a palindrome (539222935).

The spelling of 419012021 in words is "four hundred nineteen million, twelve thousand, twenty-one".