871404438 has 16 divisors (see below), whose sum is σ = 1745406576. Its totient is φ = 290035200.

The previous prime is 871404407. The next prime is 871404439. The reversal of 871404438 is 834404178.

It is a junction number, because it is equal to n+sod(n) for n = 871404396 and 871404405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871404439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103863 + ... + 111938.

It is an arithmetic number, because the mean of its divisors is an integer number (109087911).

Almost surely, 2^871404438 is an apocalyptic number.

871404438 is an abundant number, since it is smaller than the sum of its proper divisors (874002138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871404438 is a wasteful number, since it uses less digits than its factorization.

871404438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216479.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 871404438 is about 29519.5602609524. The cubic root of 871404438 is about 955.1536855997.

The spelling of 871404438 in words is "eight hundred seventy-one million, four hundred four thousand, four hundred thirty-eight".