810742224 has 40 divisors (see below), whose sum is σ = 2151028000. Its totient is φ = 262942848.

The previous prime is 810742193. The next prime is 810742267. The reversal of 810742224 is 422247018.

It is a junction number, because it is equal to n+sod(n) for n = 810742191 and 810742200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226474 + ... + 230025.

It is an arithmetic number, because the mean of its divisors is an integer number (53775700).

Almost surely, 2^810742224 is an apocalyptic number.

It is an amenable number.

810742224 is an abundant number, since it is smaller than the sum of its proper divisors (1340285776).

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

810742224 is a wasteful number, since it uses less digits than its factorization.

810742224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456547 (or 456541 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 810742224 is about 28473.5355022870. The cubic root of 810742224 is about 932.4543886341.

The spelling of 810742224 in words is "eight hundred ten million, seven hundred forty-two thousand, two hundred twenty-four".