409554 has 24 divisors (see below), whose sum is σ = 904332. Its totient is φ = 133920.

The previous prime is 409543. The next prime is 409573. The reversal of 409554 is 455904.

It can be written as a sum of positive squares in 2 ways, for example, as 378225 + 31329 = 615^2 + 177^2 .

It is a super-3 number, since 3×409554³ = 206088980333890392, which contains 333 as substring.

It is an unprimeable number.

409554 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912 + ... + 1284.

2⁴⁰⁹⁵⁵⁴ is an apocalyptic number.

409554 is an abundant number, since it is smaller than the sum of its proper divisors (494778).

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

409554 is a wasteful number, since it uses less digits than its factorization.

409554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 409554 is about 639.9640614910. The cubic root of 409554 is about 74.2626411154.

The spelling of 409554 in words is "four hundred nine thousand, five hundred fifty-four".