409858600804 has 9 divisors (see below), whose sum is σ = 717254792121. Its totient is φ = 204928660200.

The previous prime is 409858600763. The next prime is 409858600883. The reversal of 409858600804 is 408006858904.

The square root of 409858600804 is 640202.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 115530650404 + 294327950400 = 339898^2 + 542520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1120354 + ... + 1440454.

Almost surely, 2^409858600804 is an apocalyptic number.

409858600804 is the 640202-nd square number.

It is an amenable number.

409858600804 is a deficient number, since it is larger than the sum of its proper divisors (307396191317).

409858600804 is an frugal number, since it uses more digits than its factorization.

409858600804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640206 (or 320103 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 409858600804 in words is "four hundred nine billion, eight hundred fifty-eight million, six hundred thousand, eight hundred four".