878448422 has 4 divisors (see below), whose sum is σ = 1317672636. Its totient is φ = 439224210.

The previous prime is 878448421. The next prime is 878448427. The reversal of 878448422 is 224844878.

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

It is a super-2 number, since 2×878448422² = 1543343260228580168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878448421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219612104 + ... + 219612107.

It is an arithmetic number, because the mean of its divisors is an integer number (329418159).

Almost surely, 2^878448422 is an apocalyptic number.

878448422 is a deficient number, since it is larger than the sum of its proper divisors (439224214).

878448422 is a wasteful number, since it uses less digits than its factorization.

878448422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439224213.

The product of its digits is 917504, while the sum is 47.

The square root of 878448422 is about 29638.6305689045. The cubic root of 878448422 is about 957.7204384444.

The spelling of 878448422 in words is "eight hundred seventy-eight million, four hundred forty-eight thousand, four hundred twenty-two".