419878 has 4 divisors (see below), whose sum is σ = 629820. Its totient is φ = 209938.

The previous prime is 419873. The next prime is 419893. The reversal of 419878 is 878914.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419873) by changing a digit.

419878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104968 + ... + 104971.

It is an arithmetic number, because the mean of its divisors is an integer number (157455).

2⁴¹⁹⁸⁷⁸ is an apocalyptic number.

419878 is a deficient number, since it is larger than the sum of its proper divisors (209942).

419878 is a wasteful number, since it uses less digits than its factorization.

419878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209941.

The product of its digits is 16128, while the sum is 37.

The square root of 419878 is about 647.9799379610. The cubic root of 419878 is about 74.8814720396.

The spelling of 419878 in words is "four hundred nineteen thousand, eight hundred seventy-eight".