404024200660 has 12 divisors (see below), whose sum is σ = 848450821428. Its totient is φ = 161609680256.

The previous prime is 404024200597. The next prime is 404024200673. The reversal of 404024200660 is 66002420404.

It can be written as a sum of positive squares in 2 ways, for example, as 297099124624 + 106925076036 = 545068^2 + 326994^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10100604997 + ... + 10100605036.

It is an arithmetic number, because the mean of its divisors is an integer number (70704235119).

Almost surely, 2^404024200660 is an apocalyptic number.

It is an amenable number.

404024200660 is an abundant number, since it is smaller than the sum of its proper divisors (444426620768).

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

404024200660 is a wasteful number, since it uses less digits than its factorization.

404024200660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201210042 (or 20201210040 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 404024200660 in words is "four hundred four billion, twenty-four million, two hundred thousand, six hundred sixty".