820045092 has 24 divisors (see below), whose sum is σ = 2014146400. Its totient is φ = 258961536.

The previous prime is 820045091. The next prime is 820045129. The reversal of 820045092 is 290540028.

It is not an unprimeable number, because it can be changed into a prime (820045091) 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, 1798117 + ... + 1798572.

Almost surely, 2^820045092 is an apocalyptic number.

It is an amenable number.

820045092 is an abundant number, since it is smaller than the sum of its proper divisors (1194101308).

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

820045092 is a wasteful number, since it uses less digits than its factorization.

820045092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596715 (or 3596713 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 820045092 is about 28636.4294562014. The cubic root of 820045092 is about 936.0073187754.

The spelling of 820045092 in words is "eight hundred twenty million, forty-five thousand, ninety-two".