419378489 has 4 divisors (see below), whose sum is σ = 420473856. Its totient is φ = 418283124.

The previous prime is 419378471. The next prime is 419378497. The reversal of 419378489 is 984873914.

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 419378489 - 2²⁰ = 418329913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 419378489.

It is not an unprimeable number, because it can be changed into a prime (419378789) 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, 547109 + ... + 547874.

It is an arithmetic number, because the mean of its divisors is an integer number (105118464).

Almost surely, 2^419378489 is an apocalyptic number.

It is an amenable number.

419378489 is a deficient number, since it is larger than the sum of its proper divisors (1095367).

419378489 is a wasteful number, since it uses less digits than its factorization.

419378489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095366.

The product of its digits is 1741824, while the sum is 53.

The square root of 419378489 is about 20478.7326023853. The cubic root of 419378489 is about 748.5176582214.

The spelling of 419378489 in words is "four hundred nineteen million, three hundred seventy-eight thousand, four hundred eighty-nine".