8209925944 has 32 divisors (see below), whose sum is σ = 16831891440. Its totient is φ = 3723148800.

The previous prime is 8209925921. The next prime is 8209925989. The reversal of 8209925944 is 4495299028.

It is a super-2 number, since 2×8209925944² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8209925891 and 8209925900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69627 + ... + 145834.

Almost surely, 2^8209925944 is an apocalyptic number.

It is an amenable number.

8209925944 is an abundant number, since it is smaller than the sum of its proper divisors (8621965496).

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

8209925944 is a wasteful number, since it uses less digits than its factorization.

8209925944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215911 (or 215907 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 8209925944 is about 90608.6416629231. The cubic root of 8209925944 is about 2017.3430040695.

The spelling of 8209925944 in words is "eight billion, two hundred nine million, nine hundred twenty-five thousand, nine hundred forty-four".