4085569980 has 72 divisors (see below), whose sum is σ = 12792683904. Its totient is φ = 1054339200.

The previous prime is 4085569973. The next prime is 4085570039. The reversal of 4085569980 is 899655804.

It is a happy number.

4085569980 is a `hidden beast` number, since 4 + 0 + 8 + 556 + 9 + 9 + 80 = 666.

It is a super-2 number, since 2×4085569980² = 33383764122954400800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360511 + ... + 371670.

Almost surely, 2^4085569980 is an apocalyptic number.

It is an amenable number.

4085569980 is an abundant number, since it is smaller than the sum of its proper divisors (8707113924).

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

4085569980 is a wasteful number, since it uses less digits than its factorization.

4085569980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732227 (or 732222 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The square root of 4085569980 is about 63918.4635297189. The cubic root of 4085569980 is about 1598.6407701150.

The spelling of 4085569980 in words is "four billion, eighty-five million, five hundred sixty-nine thousand, nine hundred eighty".