876142644 has 36 divisors (see below), whose sum is σ = 2213690976. Its totient is φ = 269581728.

The previous prime is 876142639. The next prime is 876142661. The reversal of 876142644 is 446241678.

It is a junction number, because it is equal to n+sod(n) for n = 876142596 and 876142605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213984 + ... + 218039.

It is an arithmetic number, because the mean of its divisors is an integer number (61491416).

Almost surely, 2^876142644 is an apocalyptic number.

It is an amenable number.

876142644 is an abundant number, since it is smaller than the sum of its proper divisors (1337548332).

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

876142644 is a wasteful number, since it uses less digits than its factorization.

876142644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432056 (or 432041 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 876142644 is about 29599.7068228724. The cubic root of 876142644 is about 956.8817530176.

The spelling of 876142644 in words is "eight hundred seventy-six million, one hundred forty-two thousand, six hundred forty-four".